772947146 has 16 divisors (see below), whose sum is σ = 1172788224. Its totient is φ = 382040064.

The previous prime is 772947103. The next prime is 772947167. The reversal of 772947146 is 641749277.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 772947146.

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, 66506 + ... + 77258.

It is an arithmetic number, because the mean of its divisors is an integer number (73299264).

Almost surely, 2^772947146 is an apocalyptic number.

772947146 is a deficient number, since it is larger than the sum of its proper divisors (399841078).

772947146 is a wasteful number, since it uses less digits than its factorization.

772947146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11165.

The product of its digits is 592704, while the sum is 47.

The square root of 772947146 is about 27801.9270195431. The cubic root of 772947146 is about 917.7335301823.

The spelling of 772947146 in words is "seven hundred seventy-two million, nine hundred forty-seven thousand, one hundred forty-six".