87722498 has 16 divisors (see below), whose sum is σ = 138136320. Its totient is φ = 41725200.

The previous prime is 87722491. The next prime is 87722519. The reversal of 87722498 is 89422778.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87722491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8333 + ... + 15648.

It is an arithmetic number, because the mean of its divisors is an integer number (8633520).

Almost surely, 2^87722498 is an apocalyptic number.

87722498 is a deficient number, since it is larger than the sum of its proper divisors (50413822).

87722498 is a wasteful number, since it uses less digits than its factorization.

87722498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24073.

The product of its digits is 451584, while the sum is 47.

The square root of 87722498 is about 9366.0289343990. The cubic root of 87722498 is about 444.3279811556.

The spelling of 87722498 in words is "eighty-seven million, seven hundred twenty-two thousand, four hundred ninety-eight".