1049921699 has 4 divisors (see below), whose sum is σ = 1050426864. Its totient is φ = 1049416536.

The previous prime is 1049921693. The next prime is 1049921711. The reversal of 1049921699 is 9961299401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1049921699 - 2⁸ = 1049921443 is a prime.

It is a super-2 number, since 2×1049921699² = 2204671148062093202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1049921693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249452 + ... + 253625.

It is an arithmetic number, because the mean of its divisors is an integer number (262606716).

Almost surely, 2^1049921699 is an apocalyptic number.

1049921699 is a deficient number, since it is larger than the sum of its proper divisors (505165).

1049921699 is an equidigital number, since it uses as much as digits as its factorization.

1049921699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505164.

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 1049921699 is about 32402.4952588531. The cubic root of 1049921699 is about 1016.3710911547.

The spelling of 1049921699 in words is "one billion, forty-nine million, nine hundred twenty-one thousand, six hundred ninety-nine".