70041989 has 16 divisors (see below), whose sum is σ = 79211520. Its totient is φ = 61582080.

The previous prime is 70041941. The next prime is 70042003. The reversal of 70041989 is 98914007.

It is not a de Polignac number, because 70041989 - 2¹² = 70037893 is a prime.

It is a super-2 number, since 2×70041989² = 9811760446152242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70041919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12992 + ... + 17574.

It is an arithmetic number, because the mean of its divisors is an integer number (4950720).

Almost surely, 2^70041989 is an apocalyptic number.

It is an amenable number.

70041989 is a deficient number, since it is larger than the sum of its proper divisors (9169531).

70041989 is a wasteful number, since it uses less digits than its factorization.

70041989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 70041989 is about 8369.1092118576. The cubic root of 70041989 is about 412.2109176281.

The spelling of 70041989 in words is "seventy million, forty-one thousand, nine hundred eighty-nine".