70863671 has 2 divisors, whose sum is σ = 70863672. Its totient is φ = 70863670.

The previous prime is 70863649. The next prime is 70863697. The reversal of 70863671 is 17636807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70863671 - 2⁶ = 70863607 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70863601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35431835 + 35431836.

It is an arithmetic number, because the mean of its divisors is an integer number (35431836).

Almost surely, 2^70863671 is an apocalyptic number.

70863671 is a deficient number, since it is larger than the sum of its proper divisors (1).

70863671 is an equidigital number, since it uses as much as digits as its factorization.

70863671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 70863671 is about 8418.0562483272. The cubic root of 70863671 is about 413.8165752984.

The spelling of 70863671 in words is "seventy million, eight hundred sixty-three thousand, six hundred seventy-one".