772730 has 48 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 247968.

The previous prime is 772721. The next prime is 772757. The reversal of 772730 is 37277.

It is a super-2 number, since 2×772730² = 1194223305800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 772730.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9269 + ... + 9351.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁷⁷²⁷³⁰ is an apocalyptic number.

772730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

772730 is an abundant number, since it is smaller than the sum of its proper divisors (950950).

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

772730 is a wasteful number, since it uses less digits than its factorization.

772730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 26.

The square root of 772730 is about 879.0506242532. The cubic root of 772730 is about 91.7647581731.

The spelling of 772730 in words is "seven hundred seventy-two thousand, seven hundred thirty".