87771045 has 8 divisors (see below), whose sum is σ = 140433696. Its totient is φ = 46811216.

The previous prime is 87771011. The next prime is 87771053. The reversal of 87771045 is 54017778.

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

It is a cyclic number.

It is not a de Polignac number, because 87771045 - 2⁹ = 87770533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87770994 and 87771012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2925687 + ... + 2925716.

It is an arithmetic number, because the mean of its divisors is an integer number (17554212).

Almost surely, 2^87771045 is an apocalyptic number.

It is an amenable number.

87771045 is a deficient number, since it is larger than the sum of its proper divisors (52662651).

87771045 is a wasteful number, since it uses less digits than its factorization.

87771045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851411.

The product of its (nonzero) digits is 54880, while the sum is 39.

The square root of 87771045 is about 9368.6202292547. The cubic root of 87771045 is about 444.4099320539.

The spelling of 87771045 in words is "eighty-seven million, seven hundred seventy-one thousand, forty-five".