90373501 has 2 divisors, whose sum is σ = 90373502. Its totient is φ = 90373500.

The previous prime is 90373469. The next prime is 90373529. The reversal of 90373501 is 10537309.

It is an a-pointer prime, because the next prime (90373529) can be obtained adding 90373501 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81812025 + 8561476 = 9045^2 + 2926^2 .

It is an emirp because it is prime and its reverse (10537309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90373501 - 2⁵ = 90373469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90373501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90373531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45186750 + 45186751.

It is an arithmetic number, because the mean of its divisors is an integer number (45186751).

Almost surely, 2^90373501 is an apocalyptic number.

It is an amenable number.

90373501 is a deficient number, since it is larger than the sum of its proper divisors (1).

90373501 is an equidigital number, since it uses as much as digits as its factorization.

90373501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 90373501 is about 9506.4978304316. The cubic root of 90373501 is about 448.7595483726.

The spelling of 90373501 in words is "ninety million, three hundred seventy-three thousand, five hundred one".