72429395 has 4 divisors (see below), whose sum is σ = 86915280. Its totient is φ = 57943512.

The previous prime is 72429389. The next prime is 72429407. The reversal of 72429395 is 59392427.

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 72429395 - 2¹² = 72425299 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7242935 + ... + 7242944.

It is an arithmetic number, because the mean of its divisors is an integer number (21728820).

Almost surely, 2^72429395 is an apocalyptic number.

72429395 is a deficient number, since it is larger than the sum of its proper divisors (14485885).

72429395 is a wasteful number, since it uses less digits than its factorization.

72429395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14485884.

The product of its digits is 136080, while the sum is 41.

The square root of 72429395 is about 8510.5461046868. The cubic root of 72429395 is about 416.8421422674.

The spelling of 72429395 in words is "seventy-two million, four hundred twenty-nine thousand, three hundred ninety-five".