38497815 has 32 divisors (see below), whose sum is σ = 70656000. Its totient is φ = 19867680.

The previous prime is 38497799. The next prime is 38497831. The reversal of 38497815 is 51879483.

It is an interprime number because it is at equal distance from previous prime (38497799) and next prime (38497831).

It is not a de Polignac number, because 38497815 - 2⁴ = 38497799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415 + ... + 8784.

It is an arithmetic number, because the mean of its divisors is an integer number (2208000).

Almost surely, 2^38497815 is an apocalyptic number.

38497815 is a deficient number, since it is larger than the sum of its proper divisors (32158185).

38497815 is a wasteful number, since it uses less digits than its factorization.

38497815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244 (or 9238 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 38497815 is about 6204.6607481795. The cubic root of 38497815 is about 337.6592828395.

It can be divided in two parts, 3849 and 7815, that added together give a square (11664 = 108²).

The spelling of 38497815 in words is "thirty-eight million, four hundred ninety-seven thousand, eight hundred fifteen".