72943607 has 4 divisors (see below), whose sum is σ = 79574856. Its totient is φ = 66312360.

The previous prime is 72943601. The next prime is 72943621. The reversal of 72943607 is 70634927.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72943607 - 2¹² = 72939511 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 (72943601) 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, 3315608 + ... + 3315629.

It is an arithmetic number, because the mean of its divisors is an integer number (19893714).

Almost surely, 2^72943607 is an apocalyptic number.

72943607 is a deficient number, since it is larger than the sum of its proper divisors (6631249).

72943607 is a wasteful number, since it uses less digits than its factorization.

72943607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631248.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 72943607 is about 8540.7029570171. The cubic root of 72943607 is about 417.8262729756.

It can be divided in two parts, 7294 and 3607, that added together give a palindrome (10901).

The spelling of 72943607 in words is "seventy-two million, nine hundred forty-three thousand, six hundred seven".