87244378 has 8 divisors (see below), whose sum is σ = 140933268. Its totient is φ = 40266624.

The previous prime is 87244369. The next prime is 87244379. The reversal of 87244378 is 87344278.

It can be written as a sum of positive squares in 2 ways, for example, as 77739489 + 9504889 = 8817^2 + 3083^2 .

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

It is a super-2 number, since 2×87244378² = 15223162985213768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87244379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677751 + ... + 1677802.

Almost surely, 2^87244378 is an apocalyptic number.

87244378 is a deficient number, since it is larger than the sum of its proper divisors (53688890).

87244378 is a wasteful number, since it uses less digits than its factorization.

87244378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355568.

The product of its digits is 301056, while the sum is 43.

The square root of 87244378 is about 9340.4699025263. The cubic root of 87244378 is about 443.5192595819.

The spelling of 87244378 in words is "eighty-seven million, two hundred forty-four thousand, three hundred seventy-eight".