70120899 has 12 divisors (see below), whose sum is σ = 102216400. Its totient is φ = 46317744.

The previous prime is 70120889. The next prime is 70120909. The reversal of 70120899 is 99802107.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70120889) and next prime (70120909).

It is not a de Polignac number, because 70120899 - 2¹² = 70116803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70120829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34759 + ... + 36720.

Almost surely, 2^70120899 is an apocalyptic number.

70120899 is a deficient number, since it is larger than the sum of its proper divisors (32095501).

70120899 is a wasteful number, since it uses less digits than its factorization.

70120899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71594 (or 71591 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 70120899 is about 8373.8222455459. The cubic root of 70120899 is about 412.3656598350.

The spelling of 70120899 in words is "seventy million, one hundred twenty thousand, eight hundred ninety-nine".