45974639 has 4 divisors (see below), whose sum is σ = 46256856. Its totient is φ = 45692424.

The previous prime is 45974627. The next prime is 45974651. The reversal of 45974639 is 93647954.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93647954 = 2 ⋅46823977.

It is an interprime number because it is at equal distance from previous prime (45974627) and next prime (45974651).

It is a cyclic number.

It is not a de Polignac number, because 45974639 - 2²⁴ = 29197423 is a prime.

It is a super-2 number, since 2×45974639² = 4227334862360642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45974593 and 45974602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45974659) 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, 140864 + ... + 141189.

It is an arithmetic number, because the mean of its divisors is an integer number (11564214).

Almost surely, 2^45974639 is an apocalyptic number.

45974639 is a deficient number, since it is larger than the sum of its proper divisors (282217).

45974639 is a wasteful number, since it uses less digits than its factorization.

45974639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282216.

The product of its digits is 816480, while the sum is 47.

The square root of 45974639 is about 6780.4600876342. The cubic root of 45974639 is about 358.2389274047.

The spelling of 45974639 in words is "forty-five million, nine hundred seventy-four thousand, six hundred thirty-nine".