102774772 has 24 divisors (see below), whose sum is σ = 184246272. Its totient is φ = 50148000.

The previous prime is 102774769. The next prime is 102774779. The reversal of 102774772 is 277477201.

102774772 = 109² + 110² + ... + 676².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102774779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26893 + ... + 30475.

It is an arithmetic number, because the mean of its divisors is an integer number (7676928).

Almost surely, 2^102774772 is an apocalyptic number.

It is an amenable number.

102774772 is a deficient number, since it is larger than the sum of its proper divisors (81471500).

102774772 is a wasteful number, since it uses less digits than its factorization.

102774772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759 (or 3757 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 37.

The square root of 102774772 is about 10137.7893053663. The cubic root of 102774772 is about 468.4128932211.

The spelling of 102774772 in words is "one hundred two million, seven hundred seventy-four thousand, seven hundred seventy-two".