77014457 has 4 divisors (see below), whose sum is σ = 82938660. Its totient is φ = 71090256.

The previous prime is 77014453. The next prime is 77014477. The reversal of 77014457 is 75441077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75441077 = 19 ⋅3970583.

It can be written as a sum of positive squares in 2 ways, for example, as 7974976 + 69039481 = 2824^2 + 8309^2 .

It is a cyclic number.

It is not a de Polignac number, because 77014457 - 2² = 77014453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77014453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2962082 + ... + 2962107.

It is an arithmetic number, because the mean of its divisors is an integer number (20734665).

Almost surely, 2^77014457 is an apocalyptic number.

It is an amenable number.

77014457 is a deficient number, since it is larger than the sum of its proper divisors (5924203).

77014457 is a wasteful number, since it uses less digits than its factorization.

77014457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924202.

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 77014457 is about 8775.7881127566. The cubic root of 77014457 is about 425.4587102638.

The spelling of 77014457 in words is "seventy-seven million, fourteen thousand, four hundred fifty-seven".