1072871990 has 8 divisors (see below), whose sum is σ = 1931169600. Its totient is φ = 429148792.

The previous prime is 1072871977. The next prime is 1072872011. The reversal of 1072871990 is 991782701.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53643590 + ... + 53643609.

It is an arithmetic number, because the mean of its divisors is an integer number (241396200).

Almost surely, 2^1072871990 is an apocalyptic number.

1072871990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072871990 is a deficient number, since it is larger than the sum of its proper divisors (858297610).

1072871990 is a wasteful number, since it uses less digits than its factorization.

1072871990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107287206.

The product of its (nonzero) digits is 63504, while the sum is 44.

The square root of 1072871990 is about 32754.7246973624. The cubic root of 1072871990 is about 1023.7234125173.

The spelling of 1072871990 in words is "one billion, seventy-two million, eight hundred seventy-one thousand, nine hundred ninety".