72929427 has 4 divisors (see below), whose sum is σ = 97239240. Its totient is φ = 48619616.

The previous prime is 72929411. The next prime is 72929443. The reversal of 72929427 is 72492927.

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

It is an interprime number because it is at equal distance from previous prime (72929411) and next prime (72929443).

It is a cyclic number.

It is not a de Polignac number, because 72929427 - 2⁴ = 72929411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72929497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12154902 + ... + 12154907.

It is an arithmetic number, because the mean of its divisors is an integer number (24309810).

Almost surely, 2^72929427 is an apocalyptic number.

72929427 is a deficient number, since it is larger than the sum of its proper divisors (24309813).

72929427 is a wasteful number, since it uses less digits than its factorization.

72929427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24309812.

The product of its digits is 127008, while the sum is 42.

The square root of 72929427 is about 8539.8727742280. The cubic root of 72929427 is about 417.7991965314.

The spelling of 72929427 in words is "seventy-two million, nine hundred twenty-nine thousand, four hundred twenty-seven".