1001921677 has 8 divisors (see below), whose sum is σ = 1008850752. Its totient is φ = 995004000.

The previous prime is 1001921671. The next prime is 1001921681. The reversal of 1001921677 is 7761291001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001921677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001921671) 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, 245302 + ... + 249352.

It is an arithmetic number, because the mean of its divisors is an integer number (126106344).

Almost surely, 2^1001921677 is an apocalyptic number.

It is an amenable number.

1001921677 is a deficient number, since it is larger than the sum of its proper divisors (6929075).

1001921677 is a wasteful number, since it uses less digits than its factorization.

1001921677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 1001921677 is about 31653.1463996867. The cubic root of 1001921677 is about 1000.6401491217.

The spelling of 1001921677 in words is "one billion, one million, nine hundred twenty-one thousand, six hundred seventy-seven".