90702797 has 4 divisors (see below), whose sum is σ = 91109760. Its totient is φ = 90295836.

The previous prime is 90702767. The next prime is 90702841. The reversal of 90702797 is 79720709.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79720709 = 113 ⋅705493.

It is a cyclic number.

It is not a de Polignac number, because 90702797 - 2¹⁴ = 90686413 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 (90702737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203147 + ... + 203592.

It is an arithmetic number, because the mean of its divisors is an integer number (22777440).

Almost surely, 2^90702797 is an apocalyptic number.

It is an amenable number.

90702797 is a deficient number, since it is larger than the sum of its proper divisors (406963).

90702797 is a wasteful number, since it uses less digits than its factorization.

90702797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406962.

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 90702797 is about 9523.8016044015. The cubic root of 90702797 is about 449.3039395259.

The spelling of 90702797 in words is "ninety million, seven hundred two thousand, seven hundred ninety-seven".