70490999 has 4 divisors (see below), whose sum is σ = 70577064. Its totient is φ = 70404936.

The previous prime is 70490971. The next prime is 70491011. The reversal of 70490999 is 99909407.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70490999 - 2⁸ = 70490743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70490099) 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, 41792 + ... + 43445.

It is an arithmetic number, because the mean of its divisors is an integer number (17644266).

Almost surely, 2^70490999 is an apocalyptic number.

70490999 is a deficient number, since it is larger than the sum of its proper divisors (86065).

70490999 is an equidigital number, since it uses as much as digits as its factorization.

70490999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86064.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 70490999 is about 8395.8917930140. The cubic root of 70490999 is about 413.0898795409.

The spelling of 70490999 in words is "seventy million, four hundred ninety thousand, nine hundred ninety-nine".