87814978 has 16 divisors (see below), whose sum is σ = 134640000. Its totient is φ = 42945552.

The previous prime is 87814963. The next prime is 87814999. The reversal of 87814978 is 87941878.

It is a super-3 number, since 3×87814978³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14673 + ... + 19771.

It is an arithmetic number, because the mean of its divisors is an integer number (8415000).

Almost surely, 2^87814978 is an apocalyptic number.

87814978 is a deficient number, since it is larger than the sum of its proper divisors (46825022).

87814978 is a wasteful number, since it uses less digits than its factorization.

87814978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289.

The product of its digits is 903168, while the sum is 52.

The square root of 87814978 is about 9370.9646248399. The cubic root of 87814978 is about 444.4840681386.

The spelling of 87814978 in words is "eighty-seven million, eight hundred fourteen thousand, nine hundred seventy-eight".