772400650 has 96 divisors (see below), whose sum is σ = 1707604992. Its totient is φ = 254361600.

The previous prime is 772400647. The next prime is 772400659. The reversal of 772400650 is 56004277.

772400650 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (772400659) 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 47 ways as a sum of consecutive naturals, for example, 2788312 + ... + 2788588.

It is an arithmetic number, because the mean of its divisors is an integer number (17787552).

Almost surely, 2^772400650 is an apocalyptic number.

772400650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

772400650 is an abundant number, since it is smaller than the sum of its proper divisors (935204342).

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

772400650 is a wasteful number, since it uses less digits than its factorization.

772400650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 772400650 is about 27792.0968982191. The cubic root of 772400650 is about 917.5171911338.

The spelling of 772400650 in words is "seven hundred seventy-two million, four hundred thousand, six hundred fifty".