87378677 has 4 divisors (see below), whose sum is σ = 90197376. Its totient is φ = 84559980.

The previous prime is 87378619. The next prime is 87378689. The reversal of 87378677 is 77687378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87378677 - 2¹⁴ = 87362293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87378617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409303 + ... + 1409364.

It is an arithmetic number, because the mean of its divisors is an integer number (22549344).

Almost surely, 2^87378677 is an apocalyptic number.

It is an amenable number.

87378677 is a deficient number, since it is larger than the sum of its proper divisors (2818699).

87378677 is a wasteful number, since it uses less digits than its factorization.

87378677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818698.

The product of its digits is 2765952, while the sum is 53.

The square root of 87378677 is about 9347.6562303071. The cubic root of 87378677 is about 443.7467189601.

The spelling of 87378677 in words is "eighty-seven million, three hundred seventy-eight thousand, six hundred seventy-seven".