87377478 has 16 divisors (see below), whose sum is σ = 179017776. Its totient is φ = 28415360.

The previous prime is 87377473. The next prime is 87377489. The reversal of 87377478 is 87477378.

It is a self number, because there is not a number n which added to its sum of digits gives 87377478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87377471) 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, 177351 + ... + 177842.

It is an arithmetic number, because the mean of its divisors is an integer number (11188611).

Almost surely, 2^87377478 is an apocalyptic number.

87377478 is an abundant number, since it is smaller than the sum of its proper divisors (91640298).

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

87377478 is a wasteful number, since it uses less digits than its factorization.

87377478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355239.

The product of its digits is 1843968, while the sum is 51.

The square root of 87377478 is about 9347.5920963636. The cubic root of 87377478 is about 443.7446892706.

The spelling of 87377478 in words is "eighty-seven million, three hundred seventy-seven thousand, four hundred seventy-eight".