70886477 has 2 divisors, whose sum is σ = 70886478. Its totient is φ = 70886476.

The previous prime is 70886467. The next prime is 70886479. The reversal of 70886477 is 77468807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47596201 + 23290276 = 6899^2 + 4826^2 .

It is a cyclic number.

It is not a de Polignac number, because 70886477 - 2⁴ = 70886461 is a prime.

Together with 70886479, 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 (70886479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35443238 + 35443239.

It is an arithmetic number, because the mean of its divisors is an integer number (35443239).

Almost surely, 2^70886477 is an apocalyptic number.

It is an amenable number.

70886477 is a deficient number, since it is larger than the sum of its proper divisors (1).

70886477 is an equidigital number, since it uses as much as digits as its factorization.

70886477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 70886477 is about 8419.4107275985. The cubic root of 70886477 is about 413.8609632923.

The spelling of 70886477 in words is "seventy million, eight hundred eighty-six thousand, four hundred seventy-seven".