90403632867 has 4 divisors (see below), whose sum is σ = 120538177160. Its totient is φ = 60269088576.

The previous prime is 90403632863. The next prime is 90403632871. The reversal of 90403632867 is 76823630409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76823630409 = 3 ⋅25607876803.

It is an interprime number because it is at equal distance from previous prime (90403632863) and next prime (90403632871).

It is not a de Polignac number, because 90403632867 - 2² = 90403632863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90403632863) 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, 15067272142 + ... + 15067272147.

It is an arithmetic number, because the mean of its divisors is an integer number (30134544290).

Almost surely, 2^90403632867 is an apocalyptic number.

90403632867 is a deficient number, since it is larger than the sum of its proper divisors (30134544293).

90403632867 is a wasteful number, since it uses less digits than its factorization.

90403632867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30134544292.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 90403632867 in words is "ninety billion, four hundred three million, six hundred thirty-two thousand, eight hundred sixty-seven".