87689254 has 4 divisors (see below), whose sum is σ = 131533884. Its totient is φ = 43844626.

The previous prime is 87689233. The next prime is 87689257. The reversal of 87689254 is 45298678.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 87689198 and 87689207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87689257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21922312 + ... + 21922315.

It is an arithmetic number, because the mean of its divisors is an integer number (32883471).

Almost surely, 2^87689254 is an apocalyptic number.

87689254 is a deficient number, since it is larger than the sum of its proper divisors (43844630).

87689254 is a wasteful number, since it uses less digits than its factorization.

87689254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43844629.

The product of its digits is 967680, while the sum is 49.

The square root of 87689254 is about 9364.2540546485. The cubic root of 87689254 is about 444.2718454015.

The spelling of 87689254 in words is "eighty-seven million, six hundred eighty-nine thousand, two hundred fifty-four".