72294707 has 4 divisors (see below), whose sum is σ = 74248656. Its totient is φ = 70340760.

The previous prime is 72294683. The next prime is 72294713. The reversal of 72294707 is 70749227.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72294707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72294737) 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, 976919 + ... + 976992.

It is an arithmetic number, because the mean of its divisors is an integer number (18562164).

Almost surely, 2^72294707 is an apocalyptic number.

72294707 is a deficient number, since it is larger than the sum of its proper divisors (1953949).

72294707 is a wasteful number, since it uses less digits than its factorization.

72294707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953948.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 72294707 is about 8502.6294168334. The cubic root of 72294707 is about 416.5835986582.

The spelling of 72294707 in words is "seventy-two million, two hundred ninety-four thousand, seven hundred seven".