94731397 has 4 divisors (see below), whose sum is σ = 99717280. Its totient is φ = 89745516.

The previous prime is 94731391. The next prime is 94731401. The reversal of 94731397 is 79313749.

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: 79313749 = 7027 ⋅11287.

It is a cyclic number.

It is not a de Polignac number, because 94731397 - 2³ = 94731389 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 (94731391) 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, 2492913 + ... + 2492950.

It is an arithmetic number, because the mean of its divisors is an integer number (24929320).

Almost surely, 2^94731397 is an apocalyptic number.

It is an amenable number.

94731397 is a deficient number, since it is larger than the sum of its proper divisors (4985883).

94731397 is a wasteful number, since it uses less digits than its factorization.

94731397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985882.

The product of its digits is 142884, while the sum is 43.

The square root of 94731397 is about 9733.0055481336. The cubic root of 94731397 is about 455.8598192403.

The spelling of 94731397 in words is "ninety-four million, seven hundred thirty-one thousand, three hundred ninety-seven".