45947493 has 20 divisors (see below), whose sum is σ = 68824800. Its totient is φ = 30548232.

The previous prime is 45947479. The next prime is 45947507. The reversal of 45947493 is 39474954.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45947479) and next prime (45947507).

It is not a de Polignac number, because 45947493 - 2⁴ = 45947477 is a prime.

It is a super-2 number, since 2×45947493² = 4222344225970098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45947443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48046 + ... + 48992.

It is an arithmetic number, because the mean of its divisors is an integer number (3441240).

Almost surely, 2^45947493 is an apocalyptic number.

It is an amenable number.

45947493 is a deficient number, since it is larger than the sum of its proper divisors (22877307).

45947493 is an equidigital number, since it uses as much as digits as its factorization.

45947493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1549 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 45947493 is about 6778.4580104918. The cubic root of 45947493 is about 358.1684054185.

The spelling of 45947493 in words is "forty-five million, nine hundred forty-seven thousand, four hundred ninety-three".