77452064 has 12 divisors (see below), whose sum is σ = 152483814. Its totient is φ = 38726016.

The previous prime is 77452049. The next prime is 77452079. The reversal of 77452064 is 46025477.

It is an interprime number because it is at equal distance from previous prime (77452049) and next prime (77452079).

It can be written as a sum of positive squares in only one way, i.e., 65480464 + 11971600 = 8092^2 + 3460^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210157 + ... + 1210220.

Almost surely, 2^77452064 is an apocalyptic number.

It is an amenable number.

77452064 is a deficient number, since it is larger than the sum of its proper divisors (75031750).

77452064 is a wasteful number, since it uses less digits than its factorization.

77452064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420387 (or 2420379 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 77452064 is about 8800.6854278516. The cubic root of 77452064 is about 426.2630275542.

The spelling of 77452064 in words is "seventy-seven million, four hundred fifty-two thousand, sixty-four".