772742634 has 16 divisors (see below), whose sum is σ = 1548170688. Its totient is φ = 257133312.

The previous prime is 772742627. The next prime is 772742653. The reversal of 772742634 is 436247277.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108142 + ... + 115065.

It is an arithmetic number, because the mean of its divisors is an integer number (96760668).

Almost surely, 2^772742634 is an apocalyptic number.

772742634 is an abundant number, since it is smaller than the sum of its proper divisors (775428054).

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

772742634 is a wasteful number, since it uses less digits than its factorization.

772742634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223789.

The product of its digits is 395136, while the sum is 42.

The square root of 772742634 is about 27798.2487577905. The cubic root of 772742634 is about 917.6525828297.

The spelling of 772742634 in words is "seven hundred seventy-two million, seven hundred forty-two thousand, six hundred thirty-four".