774398351 has 4 divisors (see below), whose sum is σ = 778290000. Its totient is φ = 770506704.

The previous prime is 774398347. The next prime is 774398353. The reversal of 774398351 is 153893477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153893477 = 397 ⋅387641.

It is a cyclic number.

It is not a de Polignac number, because 774398351 - 2² = 774398347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 774398296 and 774398305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774398353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1945526 + ... + 1945923.

It is an arithmetic number, because the mean of its divisors is an integer number (194572500).

Almost surely, 2^774398351 is an apocalyptic number.

774398351 is a deficient number, since it is larger than the sum of its proper divisors (3891649).

774398351 is a wasteful number, since it uses less digits than its factorization.

774398351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891648.

The product of its digits is 635040, while the sum is 47.

The square root of 774398351 is about 27828.0137810804. The cubic root of 774398351 is about 918.3075180535.

The spelling of 774398351 in words is "seven hundred seventy-four million, three hundred ninety-eight thousand, three hundred fifty-one".