87074222 has 4 divisors (see below), whose sum is σ = 130611336. Its totient is φ = 43537110.

The previous prime is 87074219. The next prime is 87074231. The reversal of 87074222 is 22247078.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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, 21768554 + ... + 21768557.

It is an arithmetic number, because the mean of its divisors is an integer number (32652834).

Almost surely, 2^87074222 is an apocalyptic number.

87074222 is a deficient number, since it is larger than the sum of its proper divisors (43537114).

87074222 is a wasteful number, since it uses less digits than its factorization.

87074222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43537113.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 87074222 is about 9331.3569216915. The cubic root of 87074222 is about 443.2307344817.

The spelling of 87074222 in words is "eighty-seven million, seventy-four thousand, two hundred twenty-two".