1087923631 has 2 divisors, whose sum is σ = 1087923632. Its totient is φ = 1087923630.

The previous prime is 1087923587. The next prime is 1087923673. The reversal of 1087923631 is 1363297801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1087923631 - 2⁷ = 1087923503 is a prime.

It is a super-2 number, since 2×1087923631² = 2367155653776448322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087933631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543961815 + 543961816.

It is an arithmetic number, because the mean of its divisors is an integer number (543961816).

Almost surely, 2^1087923631 is an apocalyptic number.

1087923631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087923631 is an equidigital number, since it uses as much as digits as its factorization.

1087923631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1087923631 is about 32983.6873469295. The cubic root of 1087923631 is about 1028.4885712145.

The spelling of 1087923631 in words is "one billion, eighty-seven million, nine hundred twenty-three thousand, six hundred thirty-one".