74312897 has 2 divisors, whose sum is σ = 74312898. Its totient is φ = 74312896.

The previous prime is 74312879. The next prime is 74312923. The reversal of 74312897 is 79821347.

Together with previous prime (74312879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69822736 + 4490161 = 8356^2 + 2119^2 .

It is a cyclic number.

It is not a de Polignac number, because 74312897 - 2²² = 70118593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74312827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37156448 + 37156449.

It is an arithmetic number, because the mean of its divisors is an integer number (37156449).

Almost surely, 2^74312897 is an apocalyptic number.

It is an amenable number.

74312897 is a deficient number, since it is larger than the sum of its proper divisors (1).

74312897 is an equidigital number, since it uses as much as digits as its factorization.

74312897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 74312897 is about 8620.4928513398. The cubic root of 74312897 is about 420.4245461485.

The spelling of 74312897 in words is "seventy-four million, three hundred twelve thousand, eight hundred ninety-seven".