45623999 has 4 divisors (see below), whose sum is σ = 45650160. Its totient is φ = 45597840.

The previous prime is 45623993. The next prime is 45624013. The reversal of 45623999 is 99932654.

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 45623999 - 2⁴ = 45623983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45623993) 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, 10262 + ... + 14019.

It is an arithmetic number, because the mean of its divisors is an integer number (11412540).

Almost surely, 2^45623999 is an apocalyptic number.

45623999 is a deficient number, since it is larger than the sum of its proper divisors (26161).

45623999 is a wasteful number, since it uses less digits than its factorization.

45623999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26160.

The product of its digits is 524880, while the sum is 47.

The square root of 45623999 is about 6754.5539453024. The cubic root of 45623999 is about 357.3258616920.

The spelling of 45623999 in words is "forty-five million, six hundred twenty-three thousand, nine hundred ninety-nine".