1072787976 has 160 divisors (see below), whose sum is σ = 3254106240. Its totient is φ = 328240512.

The previous prime is 1072787929. The next prime is 1072787993. The reversal of 1072787976 is 6797872701.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2922945 + ... + 2923311.

It is an arithmetic number, because the mean of its divisors is an integer number (20338164).

Almost surely, 2^1072787976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1072787976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627053120).

1072787976 is an abundant number, since it is smaller than the sum of its proper divisors (2181318264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1072787976 is a wasteful number, since it uses less digits than its factorization.

1072787976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 54.

The square root of 1072787976 is about 32753.4422007825. The cubic root of 1072787976 is about 1023.6966900550.

The spelling of 1072787976 in words is "one billion, seventy-two million, seven hundred eighty-seven thousand, nine hundred seventy-six".