37868947 has 4 divisors (see below), whose sum is σ = 38005936. Its totient is φ = 37731960.

The previous prime is 37868933. The next prime is 37868951. The reversal of 37868947 is 74986873.

It is a happy number.

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 37868947 - 2⁷ = 37868819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 37868894 and 37868903.

It is not an unprimeable number, because it can be changed into a prime (37868917) 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, 68079 + ... + 68632.

It is an arithmetic number, because the mean of its divisors is an integer number (9501484).

Almost surely, 2^37868947 is an apocalyptic number.

37868947 is a deficient number, since it is larger than the sum of its proper divisors (136989).

37868947 is a wasteful number, since it uses less digits than its factorization.

37868947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136988.

The product of its digits is 2032128, while the sum is 52.

The square root of 37868947 is about 6153.7750202620. The cubic root of 37868947 is about 335.8106069601.

The spelling of 37868947 in words is "thirty-seven million, eight hundred sixty-eight thousand, nine hundred forty-seven".