4380278087 has 4 divisors (see below), whose sum is σ = 4388286456. Its totient is φ = 4372269720.

The previous prime is 4380278053. The next prime is 4380278143. The reversal of 4380278087 is 7808720834.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4380278087 - 2¹⁰ = 4380277063 is a prime.

It is a super-2 number, since 2×4380278087² = 38373672238904759138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380278017) 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, 4003364 + ... + 4004457.

It is an arithmetic number, because the mean of its divisors is an integer number (1097071614).

Almost surely, 2^4380278087 is an apocalyptic number.

4380278087 is a deficient number, since it is larger than the sum of its proper divisors (8008369).

4380278087 is an equidigital number, since it uses as much as digits as its factorization.

4380278087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008368.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 4380278087 is about 66183.6693376848. The cubic root of 4380278087 is about 1636.1906040193.

The spelling of 4380278087 in words is "four billion, three hundred eighty million, two hundred seventy-eight thousand, eighty-seven".