74933897 has 4 divisors (see below), whose sum is σ = 75989376. Its totient is φ = 73878420.

The previous prime is 74933879. The next prime is 74933899. The reversal of 74933897 is 79833947.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79833947 = 2357 ⋅33871.

It is a cyclic number.

It is not a de Polignac number, because 74933897 - 2²² = 70739593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74933899) 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, 527633 + ... + 527774.

It is an arithmetic number, because the mean of its divisors is an integer number (18997344).

Almost surely, 2^74933897 is an apocalyptic number.

It is an amenable number.

74933897 is a deficient number, since it is larger than the sum of its proper divisors (1055479).

74933897 is a wasteful number, since it uses less digits than its factorization.

74933897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055478.

The product of its digits is 1143072, while the sum is 50.

The square root of 74933897 is about 8656.4367380580. The cubic root of 74933897 is about 421.5923997234.

Adding to 74933897 its sum of digits (50), we get a palindrome (74933947).

The spelling of 74933897 in words is "seventy-four million, nine hundred thirty-three thousand, eight hundred ninety-seven".