1956097887 has 8 divisors (see below), whose sum is σ = 2623748736. Its totient is φ = 1296256152.

The previous prime is 1956097883. The next prime is 1956097901. The reversal of 1956097887 is 7887906591.

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

It is not a de Polignac number, because 1956097887 - 2² = 1956097883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1956097887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956097883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951693 + ... + 1952694.

It is an arithmetic number, because the mean of its divisors is an integer number (327968592).

Almost surely, 2^1956097887 is an apocalyptic number.

1956097887 is a deficient number, since it is larger than the sum of its proper divisors (667650849).

1956097887 is a wasteful number, since it uses less digits than its factorization.

1956097887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904557.

The product of its (nonzero) digits is 7620480, while the sum is 60.

The square root of 1956097887 is about 44227.7954119352. The cubic root of 1956097887 is about 1250.6338943813.

The spelling of 1956097887 in words is "one billion, nine hundred fifty-six million, ninety-seven thousand, eight hundred eighty-seven".