72629506 has 4 divisors (see below), whose sum is σ = 108944262. Its totient is φ = 36314752.

The previous prime is 72629503. The next prime is 72629509. The reversal of 72629506 is 60592627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60592627 = 101 ⋅599927.

It is an interprime number because it is at equal distance from previous prime (72629503) and next prime (72629509).

It can be written as a sum of positive squares in only one way, i.e., 70711281 + 1918225 = 8409^2 + 1385^2 .

It is not an unprimeable number, because it can be changed into a prime (72629503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18157375 + ... + 18157378.

Almost surely, 2^72629506 is an apocalyptic number.

72629506 is a deficient number, since it is larger than the sum of its proper divisors (36314756).

72629506 is a wasteful number, since it uses less digits than its factorization.

72629506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36314755.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 72629506 is about 8522.2946440498. The cubic root of 72629506 is about 417.2256789750.

The spelling of 72629506 in words is "seventy-two million, six hundred twenty-nine thousand, five hundred six".