60640645 has 16 divisors (see below), whose sum is σ = 79107840. Its totient is φ = 44357184.

The previous prime is 60640633. The next prime is 60640651. The reversal of 60640645 is 54604606.

It is a cyclic number.

It is not a de Polignac number, because 60640645 - 2²¹ = 58543493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2596 + ... + 11314.

It is an arithmetic number, because the mean of its divisors is an integer number (4944240).

Almost surely, 2^60640645 is an apocalyptic number.

60640645 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

60640645 is a deficient number, since it is larger than the sum of its proper divisors (18467195).

60640645 is a wasteful number, since it uses less digits than its factorization.

60640645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8844.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 60640645 is about 7787.2103477433. The cubic root of 60640645 is about 392.8751899462.

The spelling of 60640645 in words is "sixty million, six hundred forty thousand, six hundred forty-five".