76231247 has 4 divisors (see below), whose sum is σ = 80715456. Its totient is φ = 71747040.

The previous prime is 76231241. The next prime is 76231277. The reversal of 76231247 is 74213267.

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 76231247 - 2¹⁶ = 76165711 is a prime.

It is a super-2 number, since 2×76231247² = 11622406038350018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76231241) by changing a digit.

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, 2242079 + ... + 2242112.

It is an arithmetic number, because the mean of its divisors is an integer number (20178864).

Almost surely, 2^76231247 is an apocalyptic number.

76231247 is a deficient number, since it is larger than the sum of its proper divisors (4484209).

76231247 is a wasteful number, since it uses less digits than its factorization.

76231247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484208.

The product of its digits is 14112, while the sum is 32.

The square root of 76231247 is about 8731.0507385996. The cubic root of 76231247 is about 424.0115381190.

The spelling of 76231247 in words is "seventy-six million, two hundred thirty-one thousand, two hundred forty-seven".