74420971 has 2 divisors, whose sum is σ = 74420972. Its totient is φ = 74420970.

The previous prime is 74420963. The next prime is 74420981. The reversal of 74420971 is 17902447.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74420971 - 2³ = 74420963 is a prime.

It is not a weakly prime, because it can be changed into another prime (74420981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37210485 + 37210486.

It is an arithmetic number, because the mean of its divisors is an integer number (37210486).

Almost surely, 2^74420971 is an apocalyptic number.

74420971 is a deficient number, since it is larger than the sum of its proper divisors (1).

74420971 is an equidigital number, since it uses as much as digits as its factorization.

74420971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 74420971 is about 8626.7590090369. The cubic root of 74420971 is about 420.6282566552.

The spelling of 74420971 in words is "seventy-four million, four hundred twenty thousand, nine hundred seventy-one".