87061474 has 4 divisors (see below), whose sum is σ = 130592214. Its totient is φ = 43530736.

The previous prime is 87061453. The next prime is 87061489. The reversal of 87061474 is 47416078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47416078 = 2 ⋅23708039.

It can be written as a sum of positive squares in only one way, i.e., 67125249 + 19936225 = 8193^2 + 4465^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21765367 + ... + 21765370.

Almost surely, 2^87061474 is an apocalyptic number.

87061474 is a deficient number, since it is larger than the sum of its proper divisors (43530740).

87061474 is a wasteful number, since it uses less digits than its factorization.

87061474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43530739.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 87061474 is about 9330.6738234706. The cubic root of 87061474 is about 443.2091031996.

The spelling of 87061474 in words is "eighty-seven million, sixty-one thousand, four hundred seventy-four".