774620 has 48 divisors (see below), whose sum is σ = 2032128. Its totient is φ = 240960.

The previous prime is 774601. The next prime is 774629. The reversal of 774620 is 26477.

It is a super-2 number, since 2×774620² = 1200072288800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 774620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1289 + ... + 1791.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2⁷⁷⁴⁶²⁰ is an apocalyptic number.

774620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016064).

774620 is an abundant number, since it is smaller than the sum of its proper divisors (1257508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

774620 is a wasteful number, since it uses less digits than its factorization.

774620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 774620 is about 880.1249911234. The cubic root of 774620 is about 91.8395122634.

The spelling of 774620 in words is "seven hundred seventy-four thousand, six hundred twenty".