74902897 has 2 divisors, whose sum is σ = 74902898. Its totient is φ = 74902896.

The previous prime is 74902847. The next prime is 74902903. The reversal of 74902897 is 79820947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66194496 + 8708401 = 8136^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 74902897 - 2¹¹ = 74900849 is a prime.

It is a super-2 number, since 2×74902897² = 11220887957985218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74902847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37451448 + 37451449.

It is an arithmetic number, because the mean of its divisors is an integer number (37451449).

Almost surely, 2^74902897 is an apocalyptic number.

It is an amenable number.

74902897 is a deficient number, since it is larger than the sum of its proper divisors (1).

74902897 is an equidigital number, since it uses as much as digits as its factorization.

74902897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 74902897 is about 8654.6459777394. The cubic root of 74902897 is about 421.5342543998.

The spelling of 74902897 in words is "seventy-four million, nine hundred two thousand, eight hundred ninety-seven".