87457755 has 32 divisors (see below), whose sum is σ = 174463488. Its totient is φ = 36345600.

The previous prime is 87457739. The next prime is 87457771. The reversal of 87457755 is 55775478.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87457739) and next prime (87457771).

It is not a de Polignac number, because 87457755 - 2⁴ = 87457739 is a prime.

It is a super-3 number, since 3×87457755³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36706 + ... + 39015.

It is an arithmetic number, because the mean of its divisors is an integer number (5451984).

Almost surely, 2^87457755 is an apocalyptic number.

87457755 is a deficient number, since it is larger than the sum of its proper divisors (87005733).

87457755 is a wasteful number, since it uses less digits than its factorization.

87457755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75747.

The product of its digits is 1372000, while the sum is 48.

The square root of 87457755 is about 9351.8851040846. The cubic root of 87457755 is about 443.8805426947.

The spelling of 87457755 in words is "eighty-seven million, four hundred fifty-seven thousand, seven hundred fifty-five".