90529649 has 8 divisors (see below), whose sum is σ = 103521600. Its totient is φ = 77552496.

The previous prime is 90529609. The next prime is 90529657. The reversal of 90529649 is 94692509.

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

It is a de Polignac number, because none of the positive numbers 2^k-90529649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90529609) 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, 17627 + ... + 22175.

It is an arithmetic number, because the mean of its divisors is an integer number (12940200).

Almost surely, 2^90529649 is an apocalyptic number.

It is an amenable number.

90529649 is a deficient number, since it is larger than the sum of its proper divisors (12991951).

90529649 is a wasteful number, since it uses less digits than its factorization.

90529649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7399.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 90529649 is about 9514.7069844531. The cubic root of 90529649 is about 449.0178563441.

The spelling of 90529649 in words is "ninety million, five hundred twenty-nine thousand, six hundred forty-nine".