76870747 has 2 divisors, whose sum is σ = 76870748. Its totient is φ = 76870746.

The previous prime is 76870727. The next prime is 76870757. The reversal of 76870747 is 74707867.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76870747 is a prime.

It is a super-2 number, since 2×76870747² = 11818223488676018, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76870697 and 76870706.

It is not a weakly prime, because it can be changed into another prime (76870727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38435373 + 38435374.

It is an arithmetic number, because the mean of its divisors is an integer number (38435374).

Almost surely, 2^76870747 is an apocalyptic number.

76870747 is a deficient number, since it is larger than the sum of its proper divisors (1).

76870747 is an equidigital number, since it uses as much as digits as its factorization.

76870747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460992, while the sum is 46.

The square root of 76870747 is about 8767.5964209126. The cubic root of 76870747 is about 425.1939082854.

The spelling of 76870747 in words is "seventy-six million, eight hundred seventy thousand, seven hundred forty-seven".