2278470987 has 12 divisors (see below), whose sum is σ = 3544288384. Its totient is φ = 1402135920.

The previous prime is 2278470967. The next prime is 2278470991. The reversal of 2278470987 is 7890748722.

2278470987 is a `hidden beast` number, since 22 + 78 + 470 + 9 + 87 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2278470987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2278470967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9736939 + ... + 9737172.

Almost surely, 2^2278470987 is an apocalyptic number.

2278470987 is a deficient number, since it is larger than the sum of its proper divisors (1265817397).

2278470987 is a wasteful number, since it uses less digits than its factorization.

2278470987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19474130 (or 19474127 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The square root of 2278470987 is about 47733.3320332868. The cubic root of 2278470987 is about 1315.8745909803.

The spelling of 2278470987 in words is "two billion, two hundred seventy-eight million, four hundred seventy thousand, nine hundred eighty-seven".