70004389 has 12 divisors (see below), whose sum is σ = 87698604. Its totient is φ = 55387584.

The previous prime is 70004371. The next prime is 70004399. The reversal of 70004389 is 98340007.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12744900 + 57259489 = 3570^2 + 7567^2 .

It is not a de Polignac number, because 70004389 - 2⁹ = 70003877 is a prime.

It is a super-2 number, since 2×70004389² = 9801228958526642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70004389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70004309) 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, 54312 + ... + 55585.

It is an arithmetic number, because the mean of its divisors is an integer number (7308217).

Almost surely, 2^70004389 is an apocalyptic number.

It is an amenable number.

70004389 is a deficient number, since it is larger than the sum of its proper divisors (17694215).

70004389 is a wasteful number, since it uses less digits than its factorization.

70004389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109924 (or 109917 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70004389 is about 8366.8625541478. The cubic root of 70004389 is about 412.1371432871.

The spelling of 70004389 in words is "seventy million, four thousand, three hundred eighty-nine".