772405704 has 48 divisors (see below), whose sum is σ = 2390781120. Its totient is φ = 220687200.

The previous prime is 772405657. The next prime is 772405709. The reversal of 772405704 is 407504277.

It is a happy number.

772405704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×772405704² = 1193221143143471232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (772405709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765772 + ... + 766779.

It is an arithmetic number, because the mean of its divisors is an integer number (49807940).

Almost surely, 2^772405704 is an apocalyptic number.

It is an amenable number.

772405704 is an abundant number, since it is smaller than the sum of its proper divisors (1618375416).

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

772405704 is a wasteful number, since it uses less digits than its factorization.

772405704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532570 (or 1532563 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 772405704 is about 27792.1878231995. The cubic root of 772405704 is about 917.5191923067.

It can be divided in two parts, 77240 and 5704, that added together give a square (82944 = 288²).

The spelling of 772405704 in words is "seven hundred seventy-two million, four hundred five thousand, seven hundred four".