72427034 has 4 divisors (see below), whose sum is σ = 108640554. Its totient is φ = 36213516.

The previous prime is 72427013. The next prime is 72427049. The reversal of 72427034 is 43072427.

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

It can be written as a sum of positive squares in only one way, i.e., 72301009 + 126025 = 8503^2 + 355^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72426988 and 72427006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18106757 + ... + 18106760.

Almost surely, 2^72427034 is an apocalyptic number.

72427034 is a deficient number, since it is larger than the sum of its proper divisors (36213520).

72427034 is a wasteful number, since it uses less digits than its factorization.

72427034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36213519.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 72427034 is about 8510.4073933038. The cubic root of 72427034 is about 416.8376129139.

The spelling of 72427034 in words is "seventy-two million, four hundred twenty-seven thousand, thirty-four".