70490971 has 2 divisors, whose sum is σ = 70490972. Its totient is φ = 70490970.

The previous prime is 70490963. The next prime is 70491011. The reversal of 70490971 is 17909407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70490971 - 2³ = 70490963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70490971.

It is not a weakly prime, because it can be changed into another prime (70490911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35245485 + 35245486.

It is an arithmetic number, because the mean of its divisors is an integer number (35245486).

Almost surely, 2^70490971 is an apocalyptic number.

70490971 is a deficient number, since it is larger than the sum of its proper divisors (1).

70490971 is an equidigital number, since it uses as much as digits as its factorization.

70490971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 70490971 is about 8395.8901255317. The cubic root of 70490971 is about 413.0898248459.

The spelling of 70490971 in words is "seventy million, four hundred ninety thousand, nine hundred seventy-one".