87651475 has 12 divisors (see below), whose sum is σ = 111001824. Its totient is φ = 68628320.

The previous prime is 87651469. The next prime is 87651491. The reversal of 87651475 is 57415678.

It is not a de Polignac number, because 87651475 - 2¹¹ = 87649427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36124 + ... + 38473.

It is an arithmetic number, because the mean of its divisors is an integer number (9250152).

Almost surely, 2^87651475 is an apocalyptic number.

87651475 is a deficient number, since it is larger than the sum of its proper divisors (23350349).

87651475 is a wasteful number, since it uses less digits than its factorization.

87651475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74654 (or 74649 counting only the distinct ones).

The product of its digits is 235200, while the sum is 43.

The square root of 87651475 is about 9362.2366451612. The cubic root of 87651475 is about 444.2080346295.

The spelling of 87651475 in words is "eighty-seven million, six hundred fifty-one thousand, four hundred seventy-five".