72407527 has 4 divisors (see below), whose sum is σ = 72786816. Its totient is φ = 72028240.

The previous prime is 72407521. The next prime is 72407551. The reversal of 72407527 is 72570427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72570427 = 79 ⋅918613.

It is a cyclic number.

It is not a de Polignac number, because 72407527 - 2¹¹ = 72405479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72407492 and 72407501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72407521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189358 + ... + 189739.

It is an arithmetic number, because the mean of its divisors is an integer number (18196704).

Almost surely, 2^72407527 is an apocalyptic number.

72407527 is a deficient number, since it is larger than the sum of its proper divisors (379289).

72407527 is a wasteful number, since it uses less digits than its factorization.

72407527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379288.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 72407527 is about 8509.2612487806. The cubic root of 72407527 is about 416.8001868269.

The spelling of 72407527 in words is "seventy-two million, four hundred seven thousand, five hundred twenty-seven".