1092978887 has 16 divisors (see below), whose sum is σ = 1467497472. Its totient is φ = 786157920.

The previous prime is 1092978769. The next prime is 1092978919. The reversal of 1092978887 is 7888792901.

It is a cyclic number.

It is not a de Polignac number, because 1092978887 - 2¹⁴ = 1092962503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1092978587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544943 + ... + 546944.

It is an arithmetic number, because the mean of its divisors is an integer number (91718592).

Almost surely, 2^1092978887 is an apocalyptic number.

1092978887 is a deficient number, since it is larger than the sum of its proper divisors (374518585).

1092978887 is a wasteful number, since it uses less digits than its factorization.

1092978887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091918.

The product of its (nonzero) digits is 4064256, while the sum is 59.

The square root of 1092978887 is about 33060.2312000385. The cubic root of 1092978887 is about 1030.0791364716.

It can be divided in two parts, 1092 and 978887, that added together give a palindrome (979979).

The spelling of 1092978887 in words is "one billion, ninety-two million, nine hundred seventy-eight thousand, eight hundred eighty-seven".