90781467 has 16 divisors (see below), whose sum is σ = 141158400. Its totient is φ = 51874536.

The previous prime is 90781463. The next prime is 90781489. The reversal of 90781467 is 76418709.

It is not a de Polignac number, because 90781467 - 2² = 90781463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90781463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43083 + ... + 45140.

It is an arithmetic number, because the mean of its divisors is an integer number (8822400).

Almost surely, 2^90781467 is an apocalyptic number.

90781467 is a deficient number, since it is larger than the sum of its proper divisors (50376933).

90781467 is an equidigital number, since it uses as much as digits as its factorization.

90781467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88247 (or 88233 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 90781467 is about 9527.9308876587. The cubic root of 90781467 is about 449.4338014773.

The spelling of 90781467 in words is "ninety million, seven hundred eighty-one thousand, four hundred sixty-seven".