38613897 has 24 divisors (see below), whose sum is σ = 64097280. Its totient is φ = 21942720.

The previous prime is 38613893. The next prime is 38613917. The reversal of 38613897 is 79831683.

It is a happy number.

It is not a de Polignac number, because 38613897 - 2² = 38613893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38613893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10429 + ... + 13637.

It is an arithmetic number, because the mean of its divisors is an integer number (2670720).

Almost surely, 2^38613897 is an apocalyptic number.

It is an amenable number.

38613897 is a deficient number, since it is larger than the sum of its proper divisors (25483383).

38613897 is a wasteful number, since it uses less digits than its factorization.

38613897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3413 (or 3410 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 38613897 is about 6214.0081268051. The cubic root of 38613897 is about 337.9983222960.

The spelling of 38613897 in words is "thirty-eight million, six hundred thirteen thousand, eight hundred ninety-seven".