90070 has 8 divisors (see below), whose sum is σ = 162144. Its totient is φ = 36024.

The previous prime is 90067. The next prime is 90071. The reversal of 90070 is 7009.

It is a happy number.

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

It is a super-2 number, since 2×90070² = 16225209800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90071) 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, 4494 + ... + 4513.

It is an arithmetic number, because the mean of its divisors is an integer number (20268).

2⁹⁰⁰⁷⁰ is an apocalyptic number.

90070 is a deficient number, since it is larger than the sum of its proper divisors (72074).

90070 is a wasteful number, since it uses less digits than its factorization.

90070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9014.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 90070 is about 300.1166439903. The cubic root of 90070 is about 44.8256629114.

Adding to 90070 its reverse (7009), we get a palindrome (97079).

The spelling of 90070 in words is "ninety thousand, seventy".