1772894939 has 4 divisors (see below), whose sum is σ = 1782799560. Its totient is φ = 1762990320.

The previous prime is 1772894897. The next prime is 1772894941. The reversal of 1772894939 is 9394982771.

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 1772894939 - 2¹⁶ = 1772829403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1772894989) 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, 4952042 + ... + 4952399.

It is an arithmetic number, because the mean of its divisors is an integer number (445699890).

Almost surely, 2^1772894939 is an apocalyptic number.

1772894939 is a deficient number, since it is larger than the sum of its proper divisors (9904621).

1772894939 is an equidigital number, since it uses as much as digits as its factorization.

1772894939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904620.

The product of its digits is 6858432, while the sum is 59.

The square root of 1772894939 is about 42105.7589766531. The cubic root of 1772894939 is about 1210.3036232345.

The spelling of 1772894939 in words is "one billion, seven hundred seventy-two million, eight hundred ninety-four thousand, nine hundred thirty-nine".