77374057 has 2 divisors, whose sum is σ = 77374058. Its totient is φ = 77374056.

The previous prime is 77374027. The next prime is 77374091. The reversal of 77374057 is 75047377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74028816 + 3345241 = 8604^2 + 1829^2 .

It is an emirp because it is prime and its reverse (75047377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77374057 - 2¹⁹ = 76849769 is a prime.

It is not a weakly prime, because it can be changed into another prime (77374027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38687028 + 38687029.

It is an arithmetic number, because the mean of its divisors is an integer number (38687029).

Almost surely, 2^77374057 is an apocalyptic number.

It is an amenable number.

77374057 is a deficient number, since it is larger than the sum of its proper divisors (1).

77374057 is an equidigital number, since it uses as much as digits as its factorization.

77374057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144060, while the sum is 40.

The square root of 77374057 is about 8796.2524406704. The cubic root of 77374057 is about 426.1198737643.

The spelling of 77374057 in words is "seventy-seven million, three hundred seventy-four thousand, fifty-seven".