1691677048 has 16 divisors (see below), whose sum is σ = 3309803280. Its totient is φ = 809062848.

The previous prime is 1691677019. The next prime is 1691677051. The reversal of 1691677048 is 8407761961.

It is a junction number, because it is equal to n+sod(n) for n = 1691676992 and 1691677010.

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, 4596765 + ... + 4597132.

It is an arithmetic number, because the mean of its divisors is an integer number (206862705).

Almost surely, 2^1691677048 is an apocalyptic number.

It is an amenable number.

1691677048 is a deficient number, since it is larger than the sum of its proper divisors (1618126232).

1691677048 is a wasteful number, since it uses less digits than its factorization.

1691677048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9193926 (or 9193922 counting only the distinct ones).

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

The square root of 1691677048 is about 41130.0017991733. The cubic root of 1691677048 is about 1191.5322981581.

The spelling of 1691677048 in words is "one billion, six hundred ninety-one million, six hundred seventy-seven thousand, forty-eight".