76143971 has 2 divisors, whose sum is σ = 76143972. Its totient is φ = 76143970.

The previous prime is 76143953. The next prime is 76143973. The reversal of 76143971 is 17934167.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76143971 - 2²⁶ = 9035107 is a prime.

Together with 76143973, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 76143971 parts by 12340 straight cuts.

It is not a weakly prime, because it can be changed into another prime (76143973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38071985 + 38071986.

It is an arithmetic number, because the mean of its divisors is an integer number (38071986).

Almost surely, 2^76143971 is an apocalyptic number.

76143971 is a deficient number, since it is larger than the sum of its proper divisors (1).

76143971 is an equidigital number, since it uses as much as digits as its factorization.

76143971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 76143971 is about 8726.0512833698. The cubic root of 76143971 is about 423.8496615308.

The spelling of 76143971 in words is "seventy-six million, one hundred forty-three thousand, nine hundred seventy-one".