45698749 has 4 divisors (see below), whose sum is σ = 45861660. Its totient is φ = 45535840.

The previous prime is 45698713. The next prime is 45698759. The reversal of 45698749 is 94789654.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36517849 + 9180900 = 6043^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 45698749 - 2⁷ = 45698621 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45698696 and 45698705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45698759) 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, 81034 + ... + 81595.

It is an arithmetic number, because the mean of its divisors is an integer number (11465415).

Almost surely, 2^45698749 is an apocalyptic number.

It is an amenable number.

45698749 is a deficient number, since it is larger than the sum of its proper divisors (162911).

45698749 is a wasteful number, since it uses less digits than its factorization.

45698749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162910.

The product of its digits is 2177280, while the sum is 52.

The square root of 45698749 is about 6760.0849846729. The cubic root of 45698749 is about 357.5209018376.

The spelling of 45698749 in words is "forty-five million, six hundred ninety-eight thousand, seven hundred forty-nine".