90628901 has 16 divisors (see below), whose sum is σ = 105694848. Its totient is φ = 76876800.

The previous prime is 90628891. The next prime is 90628919. The reversal of 90628901 is 10982609.

It is not a de Polignac number, because 90628901 - 2¹⁰ = 90627877 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 (90628001) 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, 6005 + ... + 14741.

It is an arithmetic number, because the mean of its divisors is an integer number (6605928).

Almost surely, 2^90628901 is an apocalyptic number.

It is an amenable number.

90628901 is a deficient number, since it is larger than the sum of its proper divisors (15065947).

90628901 is a wasteful number, since it uses less digits than its factorization.

90628901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 90628901 is about 9519.9212706829. The cubic root of 90628901 is about 449.1818896897.

The spelling of 90628901 in words is "ninety million, six hundred twenty-eight thousand, nine hundred one".