72745435 has 24 divisors (see below), whose sum is σ = 104317920. Its totient is φ = 47701632.

The previous prime is 72745417. The next prime is 72745457. The reversal of 72745435 is 53454727.

It is a happy number.

It is not a de Polignac number, because 72745435 - 2¹³ = 72737243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72745394 and 72745403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16551 + ... + 20479.

It is an arithmetic number, because the mean of its divisors is an integer number (4346580).

Almost surely, 2^72745435 is an apocalyptic number.

72745435 is a deficient number, since it is larger than the sum of its proper divisors (31572485).

72745435 is a wasteful number, since it uses less digits than its factorization.

72745435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987 (or 3964 counting only the distinct ones).

The product of its digits is 117600, while the sum is 37.

The square root of 72745435 is about 8529.0934453786. The cubic root of 72745435 is about 417.4475485997.

The spelling of 72745435 in words is "seventy-two million, seven hundred forty-five thousand, four hundred thirty-five".