74575197 has 6 divisors (see below), whose sum is σ = 107719742. Its totient is φ = 49716792.

The previous prime is 74575183. The next prime is 74575199. The reversal of 74575197 is 79157547.

74575197 is a `hidden beast` number, since 7 + 457 + 5 + 197 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74545956 + 29241 = 8634^2 + 171^2 .

It is not a de Polignac number, because 74575197 - 2⁷ = 74575069 is a prime.

It is a super-2 number, since 2×74575197² = 11122920015177618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74575199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4143058 + ... + 4143075.

Almost surely, 2^74575197 is an apocalyptic number.

It is an amenable number.

74575197 is a deficient number, since it is larger than the sum of its proper divisors (33144545).

74575197 is a wasteful number, since it uses less digits than its factorization.

74575197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286139 (or 8286136 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The square root of 74575197 is about 8635.6931974220. The cubic root of 74575197 is about 420.9186185961.

The spelling of 74575197 in words is "seventy-four million, five hundred seventy-five thousand, one hundred ninety-seven".