90867419 has 4 divisors (see below), whose sum is σ = 91267944. Its totient is φ = 90466896.

The previous prime is 90867409. The next prime is 90867451. The reversal of 90867419 is 91476809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90867419 is a prime.

It is a super-2 number, since 2×90867419² = 16513775671443122, which contains 22 as substring.

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 90867419.

It is not an unprimeable number, because it can be changed into a prime (90867409) 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, 199922 + ... + 200375.

It is an arithmetic number, because the mean of its divisors is an integer number (22816986).

Almost surely, 2^90867419 is an apocalyptic number.

90867419 is a deficient number, since it is larger than the sum of its proper divisors (400525).

90867419 is a wasteful number, since it uses less digits than its factorization.

90867419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400524.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 90867419 is about 9532.4403486201. The cubic root of 90867419 is about 449.5755982200.

The spelling of 90867419 in words is "ninety million, eight hundred sixty-seven thousand, four hundred nineteen".