87408436 has 24 divisors (see below), whose sum is σ = 166572000. Its totient is φ = 39975264.

The previous prime is 87408421. The next prime is 87408439. The reversal of 87408436 is 63480478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87408439) 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, 17626 + ... + 22033.

It is an arithmetic number, because the mean of its divisors is an integer number (6940500).

Almost surely, 2^87408436 is an apocalyptic number.

It is an amenable number.

87408436 is a deficient number, since it is larger than the sum of its proper divisors (79163564).

87408436 is a wasteful number, since it uses less digits than its factorization.

87408436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39711 (or 39709 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 87408436 is about 9349.2478841883. The cubic root of 87408436 is about 443.7970896004.

The spelling of 87408436 in words is "eighty-seven million, four hundred eight thousand, four hundred thirty-six".