42801697 has 2 divisors, whose sum is σ = 42801698. Its totient is φ = 42801696.

The previous prime is 42801683. The next prime is 42801739. The reversal of 42801697 is 79610824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42562576 + 239121 = 6524^2 + 489^2 .

It is a cyclic number.

It is not a de Polignac number, because 42801697 - 2¹¹ = 42799649 is a prime.

It is not a weakly prime, because it can be changed into another prime (42801097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21400848 + 21400849.

It is an arithmetic number, because the mean of its divisors is an integer number (21400849).

Almost surely, 2^42801697 is an apocalyptic number.

It is an amenable number.

42801697 is a deficient number, since it is larger than the sum of its proper divisors (1).

42801697 is an equidigital number, since it uses as much as digits as its factorization.

42801697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 42801697 is about 6542.3005892423. The cubic root of 42801697 is about 349.8004222724.

The spelling of 42801697 in words is "forty-two million, eight hundred one thousand, six hundred ninety-seven".