90029331 has 24 divisors (see below), whose sum is σ = 157364064. Its totient is φ = 48418560.

The previous prime is 90029323. The next prime is 90029341. The reversal of 90029331 is 13392009.

It is not a de Polignac number, because 90029331 - 2³ = 90029323 is a prime.

It is a super-2 number, since 2×90029331² = 16210560880615122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90029295 and 90029304.

It is not an unprimeable number, because it can be changed into a prime (90029341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40960 + ... + 43101.

It is an arithmetic number, because the mean of its divisors is an integer number (6556836).

Almost surely, 2^90029331 is an apocalyptic number.

90029331 is a deficient number, since it is larger than the sum of its proper divisors (67334733).

90029331 is a wasteful number, since it uses less digits than its factorization.

90029331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84091 (or 84088 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 90029331 is about 9488.3787340093. The cubic root of 90029331 is about 448.1891523616.

The spelling of 90029331 in words is "ninety million, twenty-nine thousand, three hundred thirty-one".