89772667 has 2 divisors, whose sum is σ = 89772668. Its totient is φ = 89772666.

The previous prime is 89772659. The next prime is 89772707. The reversal of 89772667 is 76627798.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89772667 - 2³ = 89772659 is a prime.

It is not a weakly prime, because it can be changed into another prime (89772607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44886333 + 44886334.

It is an arithmetic number, because the mean of its divisors is an integer number (44886334).

Almost surely, 2^89772667 is an apocalyptic number.

89772667 is a deficient number, since it is larger than the sum of its proper divisors (1).

89772667 is an equidigital number, since it uses as much as digits as its factorization.

89772667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 52.

The square root of 89772667 is about 9474.8439037274. The cubic root of 89772667 is about 447.7628338520.

The spelling of 89772667 in words is "eighty-nine million, seven hundred seventy-two thousand, six hundred sixty-seven".