76863157 has 4 divisors (see below), whose sum is σ = 87843616. Its totient is φ = 65882700.

The previous prime is 76863131. The next prime is 76863161. The reversal of 76863157 is 75136867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76863157 - 2¹⁹ = 76338869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76863107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5490219 + ... + 5490232.

It is an arithmetic number, because the mean of its divisors is an integer number (21960904).

Almost surely, 2^76863157 is an apocalyptic number.

It is an amenable number.

76863157 is a deficient number, since it is larger than the sum of its proper divisors (10980459).

76863157 is a wasteful number, since it uses less digits than its factorization.

76863157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10980458.

The product of its digits is 211680, while the sum is 43.

The square root of 76863157 is about 8767.1635663993. The cubic root of 76863157 is about 425.1799136771.

The spelling of 76863157 in words is "seventy-six million, eight hundred sixty-three thousand, one hundred fifty-seven".