74871898 has 4 divisors (see below), whose sum is σ = 112307850. Its totient is φ = 37435948.

The previous prime is 74871847. The next prime is 74871911. The reversal of 74871898 is 89817847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55308969 + 19562929 = 7437^2 + 4423^2 .

It is a super-2 number, since 2×74871898² = 11211602220244808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18717973 + ... + 18717976.

Almost surely, 2^74871898 is an apocalyptic number.

74871898 is a deficient number, since it is larger than the sum of its proper divisors (37435952).

74871898 is a wasteful number, since it uses less digits than its factorization.

74871898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37435951.

The product of its digits is 903168, while the sum is 52.

The square root of 74871898 is about 8652.8549045965. The cubic root of 74871898 is about 421.4760949074.

The spelling of 74871898 in words is "seventy-four million, eight hundred seventy-one thousand, eight hundred ninety-eight".