90029493 has 6 divisors (see below), whose sum is σ = 130042614. Its totient is φ = 60019656.

The previous prime is 90029461. The next prime is 90029503. The reversal of 90029493 is 39492009.

It can be written as a sum of positive squares in only one way, i.e., 80407089 + 9622404 = 8967^2 + 3102^2 .

It is not a de Polignac number, because 90029493 - 2⁵ = 90029461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90029453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5001630 + ... + 5001647.

It is an arithmetic number, because the mean of its divisors is an integer number (21673769).

Almost surely, 2^90029493 is an apocalyptic number.

It is an amenable number.

90029493 is a deficient number, since it is larger than the sum of its proper divisors (40013121).

90029493 is a wasteful number, since it uses less digits than its factorization.

90029493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10003283 (or 10003280 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 90029493 is about 9488.3872707642. The cubic root of 90029493 is about 448.1894211874.

The spelling of 90029493 in words is "ninety million, twenty-nine thousand, four hundred ninety-three".