74390983 has 4 divisors (see below), whose sum is σ = 74479048. Its totient is φ = 74302920.

The previous prime is 74390977. The next prime is 74390999. The reversal of 74390983 is 38909347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38909347 = 811 ⋅47977.

It is a cyclic number.

It is not a de Polignac number, because 74390983 - 2⁹ = 74390471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74390083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42753 + ... + 44458.

It is an arithmetic number, because the mean of its divisors is an integer number (18619762).

Almost surely, 2^74390983 is an apocalyptic number.

74390983 is a deficient number, since it is larger than the sum of its proper divisors (88065).

74390983 is an equidigital number, since it uses as much as digits as its factorization.

74390983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88064.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 74390983 is about 8625.0207535982. The cubic root of 74390983 is about 420.5717515482.

The spelling of 74390983 in words is "seventy-four million, three hundred ninety thousand, nine hundred eighty-three".