736572645 has 24 divisors (see below), whose sum is σ = 1280608992. Its totient is φ = 391644000.

The previous prime is 736572643. The next prime is 736572659. The reversal of 736572645 is 546275637.

736572645 is a `hidden beast` number, since 7 + 36 + 572 + 6 + 45 = 666.

It is not a de Polignac number, because 736572645 - 2¹ = 736572643 is a prime.

It is a super-2 number, since 2×736572645² = 1085078522724592050, which contains 22 as substring.

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 736572645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (736572643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9831 + ... + 39620.

It is an arithmetic number, because the mean of its divisors is an integer number (53358708).

Almost surely, 2^736572645 is an apocalyptic number.

It is an amenable number.

736572645 is a deficient number, since it is larger than the sum of its proper divisors (544036347).

736572645 is a wasteful number, since it uses less digits than its factorization.

736572645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49793 (or 49790 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The square root of 736572645 is about 27139.8718677889. The cubic root of 736572645 is about 903.1055861936.

The spelling of 736572645 in words is "seven hundred thirty-six million, five hundred seventy-two thousand, six hundred forty-five".