772924561 has 8 divisors (see below), whose sum is σ = 794424960. Its totient is φ = 751456368.

The previous prime is 772924547. The next prime is 772924571. The reversal of 772924561 is 165429277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 772924561 - 2⁷ = 772924433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772924571) 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, 45480 + ... + 60118.

It is an arithmetic number, because the mean of its divisors is an integer number (99303120).

Almost surely, 2^772924561 is an apocalyptic number.

It is an amenable number.

772924561 is a deficient number, since it is larger than the sum of its proper divisors (21500399).

772924561 is a wasteful number, since it uses less digits than its factorization.

772924561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16103.

The product of its digits is 211680, while the sum is 43.

The square root of 772924561 is about 27801.5208396951. The cubic root of 772924561 is about 917.7245915747.

The spelling of 772924561 in words is "seven hundred seventy-two million, nine hundred twenty-four thousand, five hundred sixty-one".