747645345 has 48 divisors (see below), whose sum is σ = 1387339200. Its totient is φ = 371329920.

The previous prime is 747645331. The next prime is 747645359. The reversal of 747645345 is 543546747.

It is an interprime number because it is at equal distance from previous prime (747645331) and next prime (747645359).

It is not a de Polignac number, because 747645345 - 2⁵ = 747645313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 747645345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43035 + ... + 57855.

It is an arithmetic number, because the mean of its divisors is an integer number (28902900).

Almost surely, 2^747645345 is an apocalyptic number.

It is an amenable number.

747645345 is a deficient number, since it is larger than the sum of its proper divisors (639693855).

747645345 is a wasteful number, since it uses less digits than its factorization.

747645345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14910 (or 14907 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 45.

The square root of 747645345 is about 27343.1041580871. The cubic root of 747645345 is about 907.6084791662.

The spelling of 747645345 in words is "seven hundred forty-seven million, six hundred forty-five thousand, three hundred forty-five".