1641797086 has 16 divisors (see below), whose sum is σ = 2593793664. Its totient is φ = 777866584.

The previous prime is 1641797081. The next prime is 1641797089. The reversal of 1641797086 is 6807971461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641797081) 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, 161860 + ... + 171703.

It is an arithmetic number, because the mean of its divisors is an integer number (162112104).

Almost surely, 2^1641797086 is an apocalyptic number.

1641797086 is a deficient number, since it is larger than the sum of its proper divisors (951996578).

1641797086 is a wasteful number, since it uses less digits than its factorization.

1641797086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333695.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 1641797086 is about 40519.0953255376. The cubic root of 1641797086 is about 1179.7042939004.

The spelling of 1641797086 in words is "one billion, six hundred forty-one million, seven hundred ninety-seven thousand, eighty-six".