87099412 has 12 divisors (see below), whose sum is σ = 157680180. Its totient is φ = 42047936.

The previous prime is 87099403. The next prime is 87099433. The reversal of 87099412 is 21499078.

It can be written as a sum of positive squares in 2 ways, for example, as 15256836 + 71842576 = 3906^2 + 8476^2 .

It is a congruent number.

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, 375313 + ... + 375544.

It is an arithmetic number, because the mean of its divisors is an integer number (13140015).

Almost surely, 2^87099412 is an apocalyptic number.

It is an amenable number.

87099412 is a deficient number, since it is larger than the sum of its proper divisors (70580768).

87099412 is a wasteful number, since it uses less digits than its factorization.

87099412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750890 (or 750888 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 87099412 is about 9332.7065741938. The cubic root of 87099412 is about 443.2734716066.

The spelling of 87099412 in words is "eighty-seven million, ninety-nine thousand, four hundred twelve".