87400460 has 48 divisors (see below), whose sum is σ = 218889216. Its totient is φ = 28661952.

The previous prime is 87400457. The next prime is 87400463. The reversal of 87400460 is 6400478.

It is an interprime number because it is at equal distance from previous prime (87400457) and next prime (87400463).

It is not an unprimeable number, because it can be changed into a prime (87400463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10352 + ... + 16791.

It is an arithmetic number, because the mean of its divisors is an integer number (4560192).

Almost surely, 2^87400460 is an apocalyptic number.

It is an amenable number.

87400460 is an abundant number, since it is smaller than the sum of its proper divisors (131488756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87400460 is a wasteful number, since it uses less digits than its factorization.

87400460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27182 (or 27180 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 87400460 is about 9348.8213160804. The cubic root of 87400460 is about 443.7835903952.

The spelling of 87400460 in words is "eighty-seven million, four hundred thousand, four hundred sixty".