77028453 has 12 divisors (see below), whose sum is σ = 113149920. Its totient is φ = 50481576.

The previous prime is 77028443. The next prime is 77028461. The reversal of 77028453 is 35482077.

It is not a de Polignac number, because 77028453 - 2⁶ = 77028389 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77028433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72001 + ... + 73062.

It is an arithmetic number, because the mean of its divisors is an integer number (9429160).

Almost surely, 2^77028453 is an apocalyptic number.

It is an amenable number.

77028453 is a deficient number, since it is larger than the sum of its proper divisors (36121467).

77028453 is a wasteful number, since it uses less digits than its factorization.

77028453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145128 (or 145125 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 77028453 is about 8776.5854977890. The cubic root of 77028453 is about 425.4844818729.

The spelling of 77028453 in words is "seventy-seven million, twenty-eight thousand, four hundred fifty-three".