87798578 has 8 divisors (see below), whose sum is σ = 150511872. Its totient is φ = 37627956.

The previous prime is 87798569. The next prime is 87798587. The reversal of 87798578 is 87589778.

It is an interprime number because it is at equal distance from previous prime (87798569) and next prime (87798587).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3135650 + ... + 3135677.

It is an arithmetic number, because the mean of its divisors is an integer number (18813984).

Almost surely, 2^87798578 is an apocalyptic number.

87798578 is a deficient number, since it is larger than the sum of its proper divisors (62713294).

87798578 is a wasteful number, since it uses less digits than its factorization.

87798578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6271336.

The product of its digits is 7902720, while the sum is 59.

The square root of 87798578 is about 9370.0895406608. The cubic root of 87798578 is about 444.4563963499.

The spelling of 87798578 in words is "eighty-seven million, seven hundred ninety-eight thousand, five hundred seventy-eight".