90276791 has 4 divisors (see below), whose sum is σ = 98483784. Its totient is φ = 82069800.

The previous prime is 90276787. The next prime is 90276799. The reversal of 90276791 is 19767209.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 90276791 - 2² = 90276787 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 (90276799) 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, 4103480 + ... + 4103501.

It is an arithmetic number, because the mean of its divisors is an integer number (24620946).

Almost surely, 2^90276791 is an apocalyptic number.

90276791 is a deficient number, since it is larger than the sum of its proper divisors (8206993).

90276791 is a wasteful number, since it uses less digits than its factorization.

90276791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8206992.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 90276791 is about 9501.4099480025. The cubic root of 90276791 is about 448.5994165291.

The spelling of 90276791 in words is "ninety million, two hundred seventy-six thousand, seven hundred ninety-one".