74898973 has 2 divisors, whose sum is σ = 74898974. Its totient is φ = 74898972.

The previous prime is 74898961. The next prime is 74898977. The reversal of 74898973 is 37989847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74011609 + 887364 = 8603^2 + 942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74898973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74898977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37449486 + 37449487.

It is an arithmetic number, because the mean of its divisors is an integer number (37449487).

Almost surely, 2^74898973 is an apocalyptic number.

It is an amenable number.

74898973 is a deficient number, since it is larger than the sum of its proper divisors (1).

74898973 is an equidigital number, since it uses as much as digits as its factorization.

74898973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 55.

The square root of 74898973 is about 8654.4192757227. The cubic root of 74898973 is about 421.5268931834.

The spelling of 74898973 in words is "seventy-four million, eight hundred ninety-eight thousand, nine hundred seventy-three".