90850797 has 6 divisors (see below), whose sum is σ = 131228942. Its totient is φ = 60567192.

The previous prime is 90850783. The next prime is 90850807. The reversal of 90850797 is 79705809.

It can be written as a sum of positive squares in only one way, i.e., 59814756 + 31036041 = 7734^2 + 5571^2 .

It is not a de Polignac number, because 90850797 - 2⁶ = 90850733 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 (90850717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5047258 + ... + 5047275.

Almost surely, 2^90850797 is an apocalyptic number.

It is an amenable number.

90850797 is a deficient number, since it is larger than the sum of its proper divisors (40378145).

90850797 is a wasteful number, since it uses less digits than its factorization.

90850797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094539 (or 10094536 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 90850797 is about 9531.5684438606. The cubic root of 90850797 is about 449.5481835486.

The spelling of 90850797 in words is "ninety million, eight hundred fifty thousand, seven hundred ninety-seven".