42793969 has 2 divisors, whose sum is σ = 42793970. Its totient is φ = 42793968.

The previous prime is 42793963. The next prime is 42793973. The reversal of 42793969 is 96939724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29376400 + 13417569 = 5420^2 + 3663^2 .

It is a cyclic number.

It is not a de Polignac number, because 42793969 - 2¹⁷ = 42662897 is a prime.

It is a super-2 number, since 2×42793969² = 3662647565545922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42793963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21396984 + 21396985.

It is an arithmetic number, because the mean of its divisors is an integer number (21396985).

Almost surely, 2^42793969 is an apocalyptic number.

It is an amenable number.

42793969 is a deficient number, since it is larger than the sum of its proper divisors (1).

42793969 is an equidigital number, since it uses as much as digits as its factorization.

42793969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 42793969 is about 6541.7099446551. The cubic root of 42793969 is about 349.7793684314.

The spelling of 42793969 in words is "forty-two million, seven hundred ninety-three thousand, nine hundred sixty-nine".