87407437 has 6 divisors (see below), whose sum is σ = 94167402. Its totient is φ = 80652672.

The previous prime is 87407351. The next prime is 87407447. The reversal of 87407437 is 73470478.

It can be written as a sum of positive squares in 3 ways, for example, as 7733961 + 79673476 = 2781^2 + 8926^2 .

It is not a de Polignac number, because 87407437 - 2²³ = 79018829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87407437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87407447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32413 + ... + 35005.

It is an arithmetic number, because the mean of its divisors is an integer number (15694567).

Almost surely, 2^87407437 is an apocalyptic number.

It is an amenable number.

87407437 is a deficient number, since it is larger than the sum of its proper divisors (6759965).

87407437 is an frugal number, since it uses more digits than its factorization.

87407437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 87407437 is about 9349.1944572781. The cubic root of 87407437 is about 443.7953988598.

The spelling of 87407437 in words is "eighty-seven million, four hundred seven thousand, four hundred thirty-seven".