87241494 has 16 divisors (see below), whose sum is σ = 178195968. Its totient is φ = 28461672.

The previous prime is 87241493. The next prime is 87241499. The reversal of 87241494 is 49414278.

It is a super-2 number, since 2×87241494² = 15222156550704072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87241493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154402 + ... + 154965.

It is an arithmetic number, because the mean of its divisors is an integer number (11137248).

Almost surely, 2^87241494 is an apocalyptic number.

87241494 is an abundant number, since it is smaller than the sum of its proper divisors (90954474).

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

87241494 is a wasteful number, since it uses less digits than its factorization.

87241494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309419.

The product of its digits is 64512, while the sum is 39.

The square root of 87241494 is about 9340.3155192959. The cubic root of 87241494 is about 443.5143724527.

The spelling of 87241494 in words is "eighty-seven million, two hundred forty-one thousand, four hundred ninety-four".