772061994 has 96 divisors (see below), whose sum is σ = 1876754880. Its totient is φ = 227404800.

The previous prime is 772061989. The next prime is 772062001. The reversal of 772061994 is 499160277.

772061994 is a `hidden beast` number, since 7 + 7 + 20 + 619 + 9 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1171237 + ... + 1171895.

It is an arithmetic number, because the mean of its divisors is an integer number (19549530).

Almost surely, 2^772061994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 772061994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938377440).

772061994 is an abundant number, since it is smaller than the sum of its proper divisors (1104692886).

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

772061994 is a wasteful number, since it uses less digits than its factorization.

772061994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 772061994 is about 27786.0035629451. The cubic root of 772061994 is about 917.3830776075.

The spelling of 772061994 in words is "seven hundred seventy-two million, sixty-one thousand, nine hundred ninety-four".