72040567 has 4 divisors (see below), whose sum is σ = 73797696. Its totient is φ = 70283440.

The previous prime is 72040547. The next prime is 72040583. The reversal of 72040567 is 76504027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76504027 = 5437 ⋅14071.

It is a cyclic number.

It is not a de Polignac number, because 72040567 - 2¹⁵ = 72007799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72040547) 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, 878503 + ... + 878584.

It is an arithmetic number, because the mean of its divisors is an integer number (18449424).

Almost surely, 2^72040567 is an apocalyptic number.

72040567 is a deficient number, since it is larger than the sum of its proper divisors (1757129).

72040567 is a wasteful number, since it uses less digits than its factorization.

72040567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757128.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 72040567 is about 8487.6714710220. The cubic root of 72040567 is about 416.0948821266.

The spelling of 72040567 in words is "seventy-two million, forty thousand, five hundred sixty-seven".