772621530 has 16 divisors (see below), whose sum is σ = 1854291744. Its totient is φ = 206032400.

The previous prime is 772621523. The next prime is 772621571. The reversal of 772621530 is 35126277.

It is a junction number, because it is equal to n+sod(n) for n = 772621491 and 772621500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12876996 + ... + 12877055.

It is an arithmetic number, because the mean of its divisors is an integer number (115893234).

Almost surely, 2^772621530 is an apocalyptic number.

772621530 is an abundant number, since it is smaller than the sum of its proper divisors (1081670214).

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

772621530 is a wasteful number, since it uses less digits than its factorization.

772621530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25754061.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 772621530 is about 27796.0704057246. The cubic root of 772621530 is about 917.6046422436.

The spelling of 772621530 in words is "seven hundred seventy-two million, six hundred twenty-one thousand, five hundred thirty".