87437487 has 16 divisors (see below), whose sum is σ = 123442560. Its totient is φ = 54898272.

The previous prime is 87437473. The next prime is 87437501. The reversal of 87437487 is 78473478.

It is an interprime number because it is at equal distance from previous prime (87437473) and next prime (87437501).

It is not a de Polignac number, because 87437487 - 2¹⁰ = 87436463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87430487) 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, 5428 + ... + 14294.

It is an arithmetic number, because the mean of its divisors is an integer number (7715160).

Almost surely, 2^87437487 is an apocalyptic number.

87437487 is a deficient number, since it is larger than the sum of its proper divisors (36005073).

87437487 is a wasteful number, since it uses less digits than its factorization.

87437487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062.

The product of its digits is 1053696, while the sum is 48.

The square root of 87437487 is about 9350.8014095050. The cubic root of 87437487 is about 443.8462508399.

The spelling of 87437487 in words is "eighty-seven million, four hundred thirty-seven thousand, four hundred eighty-seven".