1997067 has 16 divisors (see below), whose sum is σ = 2815488. Its totient is φ = 1256640.

The previous prime is 1997059. The next prime is 1997081. The reversal of 1997067 is 7607991.

It is not a de Polignac number, because 1997067 - 2³ = 1997059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1997057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6967 + ... + 7247.

It is an arithmetic number, because the mean of its divisors is an integer number (175968).

2^1997067 is an apocalyptic number.

1997067 is a deficient number, since it is larger than the sum of its proper divisors (818421).

1997067 is a wasteful number, since it uses less digits than its factorization.

1997067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 1997067 is about 1413.1762098196. The cubic root of 1997067 is about 125.9304857175.

The spelling of 1997067 in words is "one million, nine hundred ninety-seven thousand, sixty-seven".