76851497 has 2 divisors, whose sum is σ = 76851498. Its totient is φ = 76851496.

The previous prime is 76851457. The next prime is 76851503. The reversal of 76851497 is 79415867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41615401 + 35236096 = 6451^2 + 5936^2 .

It is an emirp because it is prime and its reverse (79415867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76851497 - 2⁶ = 76851433 is a prime.

It is a super-2 number, since 2×76851497² = 11812305182282018, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76851427) 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 as a sum of consecutive naturals, namely, 38425748 + 38425749.

It is an arithmetic number, because the mean of its divisors is an integer number (38425749).

Almost surely, 2^76851497 is an apocalyptic number.

It is an amenable number.

76851497 is a deficient number, since it is larger than the sum of its proper divisors (1).

76851497 is an equidigital number, since it uses as much as digits as its factorization.

76851497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The square root of 76851497 is about 8766.4985598584. The cubic root of 76851497 is about 425.1584129187.

The spelling of 76851497 in words is "seventy-six million, eight hundred fifty-one thousand, four hundred ninety-seven".