38620857 has 8 divisors (see below), whose sum is σ = 56175840. Its totient is φ = 23406560.

The previous prime is 38620853. The next prime is 38620871. The reversal of 38620857 is 75802683.

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

It is a cyclic number.

It is not a de Polignac number, because 38620857 - 2² = 38620853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38620853) 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, 585132 + ... + 585197.

It is an arithmetic number, because the mean of its divisors is an integer number (7021980).

Almost surely, 2^38620857 is an apocalyptic number.

It is an amenable number.

38620857 is a deficient number, since it is larger than the sum of its proper divisors (17554983).

38620857 is a wasteful number, since it uses less digits than its factorization.

38620857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170343.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 38620857 is about 6214.5681265877. The cubic root of 38620857 is about 338.0186286898.

The spelling of 38620857 in words is "thirty-eight million, six hundred twenty thousand, eight hundred fifty-seven".