1007199943 has 4 divisors (see below), whose sum is σ = 1009443600. Its totient is φ = 1004956288.

The previous prime is 1007199929. The next prime is 1007199953. The reversal of 1007199943 is 3499917001.

It is a happy number.

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 1007199943 - 2¹⁷ = 1007068871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1007199943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1007199953) 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, 1121155 + ... + 1122052.

It is an arithmetic number, because the mean of its divisors is an integer number (252360900).

Almost surely, 2^1007199943 is an apocalyptic number.

1007199943 is a deficient number, since it is larger than the sum of its proper divisors (2243657).

1007199943 is an equidigital number, since it uses as much as digits as its factorization.

1007199943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243656.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1007199943 is about 31736.4135182286. The cubic root of 1007199943 is about 1002.3942440206.

The spelling of 1007199943 in words is "one billion, seven million, one hundred ninety-nine thousand, nine hundred forty-three".