87354789 has 8 divisors (see below), whose sum is σ = 123324480. Its totient is φ = 54810816.

The previous prime is 87354769. The next prime is 87354809. The reversal of 87354789 is 98745378.

It is an interprime number because it is at equal distance from previous prime (87354769) and next prime (87354809).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87354789 - 2⁹ = 87354277 is a prime.

It is a super-2 number, since 2×87354789² = 15261718322469042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1712839 = 87354789 / (8 + 7 + 3 + 5 + 4 + 7 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87354769) 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, 856369 + ... + 856470.

It is an arithmetic number, because the mean of its divisors is an integer number (15415560).

Almost surely, 2^87354789 is an apocalyptic number.

It is an amenable number.

87354789 is a deficient number, since it is larger than the sum of its proper divisors (35969691).

87354789 is a wasteful number, since it uses less digits than its factorization.

87354789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712859.

The product of its digits is 1693440, while the sum is 51.

The square root of 87354789 is about 9346.3783895154. The cubic root of 87354789 is about 443.7062774088.

The spelling of 87354789 in words is "eighty-seven million, three hundred fifty-four thousand, seven hundred eighty-nine".