45439087 has 4 divisors (see below), whose sum is σ = 46904896. Its totient is φ = 43973280.

The previous prime is 45439081. The next prime is 45439109. The reversal of 45439087 is 78093454.

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 45439087 - 2²³ = 37050479 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 (45439081) 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, 732858 + ... + 732919.

It is an arithmetic number, because the mean of its divisors is an integer number (11726224).

Almost surely, 2^45439087 is an apocalyptic number.

45439087 is a deficient number, since it is larger than the sum of its proper divisors (1465809).

45439087 is a wasteful number, since it uses less digits than its factorization.

45439087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465808.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 45439087 is about 6740.8520974725. The cubic root of 45439087 is about 356.8424662022.

It can be divided in two parts, 4543 and 9087, that multiplied together give a triangular number (41282241 = T₉₀₈₆).

The spelling of 45439087 in words is "forty-five million, four hundred thirty-nine thousand, eighty-seven".