38897087 has 4 divisors (see below), whose sum is σ = 38918976. Its totient is φ = 38875200.

The previous prime is 38897083. The next prime is 38897099. The reversal of 38897087 is 78079883.

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

It is a cyclic number.

It is not a de Polignac number, because 38897087 - 2² = 38897083 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 (38897083) 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, 8018 + ... + 11919.

It is an arithmetic number, because the mean of its divisors is an integer number (9729744).

Almost surely, 2^38897087 is an apocalyptic number.

38897087 is a deficient number, since it is larger than the sum of its proper divisors (21889).

38897087 is a wasteful number, since it uses less digits than its factorization.

38897087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21888.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 38897087 is about 6236.7529211922. The cubic root of 38897087 is about 338.8225911616.

The spelling of 38897087 in words is "thirty-eight million, eight hundred ninety-seven thousand, eighty-seven".