42697037 has 2 divisors, whose sum is σ = 42697038. Its totient is φ = 42697036.

The previous prime is 42697033. The next prime is 42697063. The reversal of 42697037 is 73079624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27102436 + 15594601 = 5206^2 + 3949^2 .

It is a cyclic number.

It is not a de Polignac number, because 42697037 - 2² = 42697033 is a prime.

It is equal to p_2587376 and since 42697037 and 2587376 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42697033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21348518 + 21348519.

It is an arithmetic number, because the mean of its divisors is an integer number (21348519).

Almost surely, 2^42697037 is an apocalyptic number.

It is an amenable number.

42697037 is a deficient number, since it is larger than the sum of its proper divisors (1).

42697037 is an equidigital number, since it uses as much as digits as its factorization.

42697037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 42697037 is about 6534.2969782525. The cubic root of 42697037 is about 349.5150753865.

The spelling of 42697037 in words is "forty-two million, six hundred ninety-seven thousand, thirty-seven".