39468643 has 4 divisors (see below), whose sum is σ = 41545960. Its totient is φ = 37391328.

The previous prime is 39468641. The next prime is 39468659. The reversal of 39468643 is 34686493.

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 39468643 - 2¹ = 39468641 is a prime.

It is a super-2 number, since 2×39468643² = 3115547560522898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39468643.

It is not an unprimeable number, because it can be changed into a prime (39468641) 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, 1038630 + ... + 1038667.

It is an arithmetic number, because the mean of its divisors is an integer number (10386490).

Almost surely, 2^39468643 is an apocalyptic number.

39468643 is a deficient number, since it is larger than the sum of its proper divisors (2077317).

39468643 is a wasteful number, since it uses less digits than its factorization.

39468643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077316.

The product of its digits is 373248, while the sum is 43.

The square root of 39468643 is about 6282.4074207265. The cubic root of 39468643 is about 340.4740877712.

The spelling of 39468643 in words is "thirty-nine million, four hundred sixty-eight thousand, six hundred forty-three".