76272139 has 4 divisors (see below), whose sum is σ = 76311760. Its totient is φ = 76232520.

The previous prime is 76272127. The next prime is 76272151. The reversal of 76272139 is 93127267.

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 (76272127) and next prime (76272151).

It is a cyclic number.

It is not a de Polignac number, because 76272139 - 2⁹ = 76271627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76272098 and 76272107.

It is not an unprimeable number, because it can be changed into a prime (76272109) 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, 16767 + ... + 20824.

It is an arithmetic number, because the mean of its divisors is an integer number (19077940).

Almost surely, 2^76272139 is an apocalyptic number.

76272139 is a deficient number, since it is larger than the sum of its proper divisors (39621).

76272139 is a wasteful number, since it uses less digits than its factorization.

76272139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39620.

The product of its digits is 31752, while the sum is 37.

The square root of 76272139 is about 8733.3921817356. The cubic root of 76272139 is about 424.0873407203.

The spelling of 76272139 in words is "seventy-six million, two hundred seventy-two thousand, one hundred thirty-nine".