37425643 has 4 divisors (see below), whose sum is σ = 37452888. Its totient is φ = 37398400.

The previous prime is 37425617. The next prime is 37425659. The reversal of 37425643 is 34652473.

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 37425643 - 2¹⁷ = 37294571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 37425599 and 37425608.

It is not an unprimeable number, because it can be changed into a prime (37425673) 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, 11446 + ... + 14347.

It is an arithmetic number, because the mean of its divisors is an integer number (9363222).

Almost surely, 2^37425643 is an apocalyptic number.

37425643 is a deficient number, since it is larger than the sum of its proper divisors (27245).

37425643 is a wasteful number, since it uses less digits than its factorization.

37425643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27244.

The product of its digits is 60480, while the sum is 34.

The square root of 37425643 is about 6117.6501207572. The cubic root of 37425643 is about 334.4950974307.

The spelling of 37425643 in words is "thirty-seven million, four hundred twenty-five thousand, six hundred forty-three".