45643407 has 4 divisors (see below), whose sum is σ = 60857880. Its totient is φ = 30428936.

The previous prime is 45643399. The next prime is 45643421. The reversal of 45643407 is 70434654.

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 45643407 - 2³ = 45643399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45643427) 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, 7607232 + ... + 7607237.

It is an arithmetic number, because the mean of its divisors is an integer number (15214470).

Almost surely, 2^45643407 is an apocalyptic number.

45643407 is a deficient number, since it is larger than the sum of its proper divisors (15214473).

45643407 is a wasteful number, since it uses less digits than its factorization.

45643407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15214472.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 45643407 is about 6755.9904529240. The cubic root of 45643407 is about 357.3765221438.

The spelling of 45643407 in words is "forty-five million, six hundred forty-three thousand, four hundred seven".