90529887 has 8 divisors (see below), whose sum is σ = 137950336. Its totient is φ = 51731352.

The previous prime is 90529877. The next prime is 90529897. The reversal of 90529887 is 78892509.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90529877) and next prime (90529897).

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

It is not a de Polignac number, because 90529887 - 2⁶ = 90529823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90529807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155453 + ... + 2155494.

It is an arithmetic number, because the mean of its divisors is an integer number (17243792).

Almost surely, 2^90529887 is an apocalyptic number.

90529887 is a deficient number, since it is larger than the sum of its proper divisors (47420449).

90529887 is a wasteful number, since it uses less digits than its factorization.

90529887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310957.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 90529887 is about 9514.7194913986. The cubic root of 90529887 is about 449.0182498291.

The spelling of 90529887 in words is "ninety million, five hundred twenty-nine thousand, eight hundred eighty-seven".