70389799 has 4 divisors (see below), whose sum is σ = 72292264. Its totient is φ = 68487336.

The previous prime is 70389797. The next prime is 70389817. The reversal of 70389799 is 99798307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99798307 = 7 ⋅14256901.

It is a cyclic number.

It is not a de Polignac number, because 70389799 - 2¹ = 70389797 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 (70389793) 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, 951177 + ... + 951250.

It is an arithmetic number, because the mean of its divisors is an integer number (18073066).

Almost surely, 2^70389799 is an apocalyptic number.

70389799 is a deficient number, since it is larger than the sum of its proper divisors (1902465).

70389799 is a wasteful number, since it uses less digits than its factorization.

70389799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902464.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 70389799 is about 8389.8628713466. The cubic root of 70389799 is about 412.8921014891.

The spelling of 70389799 in words is "seventy million, three hundred eighty-nine thousand, seven hundred ninety-nine".