70904389 has 8 divisors (see below), whose sum is σ = 72055872. Its totient is φ = 69757920.

The previous prime is 70904329. The next prime is 70904401. The reversal of 70904389 is 98340907.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70904389 - 2⁷ = 70904261 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 (70904329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35754 + ... + 37684.

It is an arithmetic number, because the mean of its divisors is an integer number (9006984).

Almost surely, 2^70904389 is an apocalyptic number.

It is an amenable number.

70904389 is a deficient number, since it is larger than the sum of its proper divisors (1151483).

70904389 is a wasteful number, since it uses less digits than its factorization.

70904389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 70904389 is about 8420.4743928118. The cubic root of 70904389 is about 413.8958192741.

The spelling of 70904389 in words is "seventy million, nine hundred four thousand, three hundred eighty-nine".