38697693 has 4 divisors (see below), whose sum is σ = 51596928. Its totient is φ = 25798460.

The previous prime is 38697691. The next prime is 38697697. The reversal of 38697693 is 39679683.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 38697693 - 2¹ = 38697691 is a prime.

It is a super-2 number, since 2×38697693² = 2995022887044498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38697691) 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, 6449613 + ... + 6449618.

It is an arithmetic number, because the mean of its divisors is an integer number (12899232).

Almost surely, 2^38697693 is an apocalyptic number.

It is an amenable number.

38697693 is a deficient number, since it is larger than the sum of its proper divisors (12899235).

38697693 is a wasteful number, since it uses less digits than its factorization.

38697693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899234.

The product of its digits is 1469664, while the sum is 51.

The square root of 38697693 is about 6220.7469808697. The cubic root of 38697693 is about 338.2426423158.

The spelling of 38697693 in words is "thirty-eight million, six hundred ninety-seven thousand, six hundred ninety-three".