42970933 has 2 divisors, whose sum is σ = 42970934. Its totient is φ = 42970932.

The previous prime is 42970931. The next prime is 42970957. The reversal of 42970933 is 33907924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40729924 + 2241009 = 6382^2 + 1497^2 .

It is a cyclic number.

It is not a de Polignac number, because 42970933 - 2¹ = 42970931 is a prime.

Together with 42970931, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42970892 and 42970901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42970931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21485466 + 21485467.

It is an arithmetic number, because the mean of its divisors is an integer number (21485467).

Almost surely, 2^42970933 is an apocalyptic number.

It is an amenable number.

42970933 is a deficient number, since it is larger than the sum of its proper divisors (1).

42970933 is an equidigital number, since it uses as much as digits as its factorization.

42970933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 42970933 is about 6555.2218116552. The cubic root of 42970933 is about 350.2608477242.

The spelling of 42970933 in words is "forty-two million, nine hundred seventy thousand, nine hundred thirty-three".