74698961 has 2 divisors, whose sum is σ = 74698962. Its totient is φ = 74698960.

The previous prime is 74698957. The next prime is 74698973. The reversal of 74698961 is 16989647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59830225 + 14868736 = 7735^2 + 3856^2 .

It is a cyclic number.

It is not a de Polignac number, because 74698961 - 2² = 74698957 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (74698061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37349480 + 37349481.

It is an arithmetic number, because the mean of its divisors is an integer number (37349481).

Almost surely, 2^74698961 is an apocalyptic number.

It is an amenable number.

74698961 is a deficient number, since it is larger than the sum of its proper divisors (1).

74698961 is an equidigital number, since it uses as much as digits as its factorization.

74698961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 74698961 is about 8642.8560672963. The cubic root of 74698961 is about 421.1513402071.

The spelling of 74698961 in words is "seventy-four million, six hundred ninety-eight thousand, nine hundred sixty-one".