90735019 has 6 divisors (see below), whose sum is σ = 91848356. Its totient is φ = 89635020.

The previous prime is 90735017. The next prime is 90735077. The reversal of 90735019 is 91053709.

It is not a de Polignac number, because 90735019 - 2¹ = 90735017 is a prime.

It is a super-2 number, since 2×90735019² = 16465687345860722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90735011) 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, 304 + ... + 13474.

Almost surely, 2^90735019 is an apocalyptic number.

90735019 is a deficient number, since it is larger than the sum of its proper divisors (1113337).

90735019 is an equidigital number, since it uses as much as digits as its factorization.

90735019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13337 (or 13254 counting only the distinct ones).

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 90735019 is about 9525.4931105954. The cubic root of 90735019 is about 449.3571380232.

The spelling of 90735019 in words is "ninety million, seven hundred thirty-five thousand, nineteen".