73425645 has 24 divisors (see below), whose sum is σ = 127479456. Its totient is φ = 39096288.

The previous prime is 73425641. The next prime is 73425659. The reversal of 73425645 is 54652437.

73425645 is a `hidden beast` number, since 7 + 3 + 4 + 2 + 5 + 645 = 666.

It is not a de Polignac number, because 73425645 - 2² = 73425641 is a prime.

It is a super-3 number, since 3×73425645³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73425641) 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, 41754 + ... + 43476.

It is an arithmetic number, because the mean of its divisors is an integer number (5311644).

Almost surely, 2^73425645 is an apocalyptic number.

It is an amenable number.

73425645 is a deficient number, since it is larger than the sum of its proper divisors (54053811).

73425645 is a wasteful number, since it uses less digits than its factorization.

73425645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2678 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 73425645 is about 8568.8765307945. The cubic root of 73425645 is about 418.7446358561.

The spelling of 73425645 in words is "seventy-three million, four hundred twenty-five thousand, six hundred forty-five".