32990023 has 16 divisors (see below), whose sum is σ = 39196800. Its totient is φ = 27427680.

The previous prime is 32990017. The next prime is 32990039. The reversal of 32990023 is 32009923.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 32990023 - 2¹³ = 32981831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32989973 and 32990000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32990003) 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, 3340 + ... + 8782.

It is an arithmetic number, because the mean of its divisors is an integer number (2449800).

Almost surely, 2^32990023 is an apocalyptic number.

32990023 is a deficient number, since it is larger than the sum of its proper divisors (6206777).

32990023 is a wasteful number, since it uses less digits than its factorization.

32990023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 32990023 is about 5743.6941945058. The cubic root of 32990023 is about 320.7211049232.

Adding to 32990023 its reverse (32009923), we get a palindrome (64999946).

Subtracting from 32990023 its reverse (32009923), we obtain a square (980100 = 990²).

It can be divided in two parts, 329900 and 23, that added together give a palindrome (329923).

The spelling of 32990023 in words is "thirty-two million, nine hundred ninety thousand, twenty-three".