76851317 has 2 divisors, whose sum is σ = 76851318. Its totient is φ = 76851316.

The previous prime is 76851311. The next prime is 76851319. The reversal of 76851317 is 71315867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76492516 + 358801 = 8746^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 76851317 - 2⁶ = 76851253 is a prime.

It is a super-2 number, since 2×76851317² = 11812249849268978, which contains 22 as substring.

Together with 76851319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76851311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38425658 + 38425659.

It is an arithmetic number, because the mean of its divisors is an integer number (38425659).

Almost surely, 2^76851317 is an apocalyptic number.

It is an amenable number.

76851317 is a deficient number, since it is larger than the sum of its proper divisors (1).

76851317 is an equidigital number, since it uses as much as digits as its factorization.

76851317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 76851317 is about 8766.4882934959. The cubic root of 76851317 is about 425.1580809860.

The spelling of 76851317 in words is "seventy-six million, eight hundred fifty-one thousand, three hundred seventeen".