90741601 has 4 divisors (see below), whose sum is σ = 94686912. Its totient is φ = 86796292.

The previous prime is 90741593. The next prime is 90741719. The reversal of 90741601 is 10614709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90741601 - 2³ = 90741593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90741601.

It is not an unprimeable number, because it can be changed into a prime (90741401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972621 + ... + 1972666.

It is an arithmetic number, because the mean of its divisors is an integer number (23671728).

Almost surely, 2^90741601 is an apocalyptic number.

It is an amenable number.

90741601 is a deficient number, since it is larger than the sum of its proper divisors (3945311).

90741601 is a wasteful number, since it uses less digits than its factorization.

90741601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945310.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 90741601 is about 9525.8385982547. The cubic root of 90741601 is about 449.3680033510.

The spelling of 90741601 in words is "ninety million, seven hundred forty-one thousand, six hundred one".