38723997 has 8 divisors (see below), whose sum is σ = 55603744. Its totient is φ = 23830128.

The previous prime is 38723987. The next prime is 38724013. The reversal of 38723997 is 79932783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38723997 - 2⁷ = 38723869 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 (38723917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496423 + ... + 496500.

It is an arithmetic number, because the mean of its divisors is an integer number (6950468).

Almost surely, 2^38723997 is an apocalyptic number.

It is an amenable number.

38723997 is a deficient number, since it is larger than the sum of its proper divisors (16879747).

38723997 is a wasteful number, since it uses less digits than its factorization.

38723997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992939.

The product of its digits is 571536, while the sum is 48.

The square root of 38723997 is about 6222.8608372677. The cubic root of 38723997 is about 338.3192628983.

The spelling of 38723997 in words is "thirty-eight million, seven hundred twenty-three thousand, nine hundred ninety-seven".