87402274 has 8 divisors (see below), whose sum is σ = 131166108. Its totient is φ = 43680240.

The previous prime is 87402241. The next prime is 87402307. The reversal of 87402274 is 47220478.

It is an interprime number because it is at equal distance from previous prime (87402241) and next prime (87402307).

It can be written as a sum of positive squares in 2 ways, for example, as 84364225 + 3038049 = 9185^2 + 1743^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 4557 + ... + 13984.

Almost surely, 2^87402274 is an apocalyptic number.

87402274 is a deficient number, since it is larger than the sum of its proper divisors (43763834).

87402274 is a wasteful number, since it uses less digits than its factorization.

87402274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20900.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 87402274 is about 9348.9183331549. The cubic root of 87402274 is about 443.7866606226.

The spelling of 87402274 in words is "eighty-seven million, four hundred two thousand, two hundred seventy-four".