72950771 has 4 divisors (see below), whose sum is σ = 73002432. Its totient is φ = 72899112.

The previous prime is 72950753. The next prime is 72950789. The reversal of 72950771 is 17705927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17705927 = 89 ⋅198943.

It is an interprime number because it is at equal distance from previous prime (72950753) and next prime (72950789).

It is a cyclic number.

It is not a de Polignac number, because 72950771 - 2⁶ = 72950707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72950071) 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, 23651 + ... + 26556.

It is an arithmetic number, because the mean of its divisors is an integer number (18250608).

Almost surely, 2^72950771 is an apocalyptic number.

72950771 is a deficient number, since it is larger than the sum of its proper divisors (51661).

72950771 is a wasteful number, since it uses less digits than its factorization.

72950771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51660.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 72950771 is about 8541.1223501364. The cubic root of 72950771 is about 417.8399511651.

The spelling of 72950771 in words is "seventy-two million, nine hundred fifty thousand, seven hundred seventy-one".