764653401 has 6 divisors (see below), whose sum is σ = 1104499370. Its totient is φ = 509768928.

The previous prime is 764653399. The next prime is 764653441. The reversal of 764653401 is 104356467.

It is a happy number.

764653401 is a `hidden beast` number, since 7 + 646 + 5 + 3 + 4 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 761760000 + 2893401 = 27600^2 + 1701^2 .

It is not a de Polignac number, because 764653401 - 2¹ = 764653399 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (764653441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42480736 + ... + 42480753.

Almost surely, 2^764653401 is an apocalyptic number.

It is an amenable number.

764653401 is a deficient number, since it is larger than the sum of its proper divisors (339845969).

764653401 is a wasteful number, since it uses less digits than its factorization.

764653401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84961495 (or 84961492 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 764653401 is about 27652.3670053759. The cubic root of 764653401 is about 914.4392838010.

The spelling of 764653401 in words is "seven hundred sixty-four million, six hundred fifty-three thousand, four hundred one".