76197887 has 2 divisors, whose sum is σ = 76197888. Its totient is φ = 76197886.

The previous prime is 76197881. The next prime is 76197899. The reversal of 76197887 is 78879167.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76197887 - 2¹⁴ = 76181503 is a prime.

It is a super-2 number, since 2×76197887² = 11612235966529538, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76197881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38098943 + 38098944.

It is an arithmetic number, because the mean of its divisors is an integer number (38098944).

Almost surely, 2^76197887 is an apocalyptic number.

76197887 is a deficient number, since it is larger than the sum of its proper divisors (1).

76197887 is an equidigital number, since it uses as much as digits as its factorization.

76197887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 53.

The square root of 76197887 is about 8729.1401065626. The cubic root of 76197887 is about 423.9496777082.

The spelling of 76197887 in words is "seventy-six million, one hundred ninety-seven thousand, eight hundred eighty-seven".