1997058 has 32 divisors (see below), whose sum is σ = 4834944. Its totient is φ = 536832.

The previous prime is 1997057. The next prime is 1997059. The reversal of 1997058 is 8507991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1997057) and next prime (1997059).

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1997053) 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, 685 + ... + 2112.

It is an arithmetic number, because the mean of its divisors is an integer number (151092).

2^1997058 is an apocalyptic number.

1997058 is an abundant number, since it is smaller than the sum of its proper divisors (2837886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1997058 is a wasteful number, since it uses less digits than its factorization.

1997058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 1997058 is about 1413.1730254997. The cubic root of 1997058 is about 125.9302965440.

The spelling of 1997058 in words is "one million, nine hundred ninety-seven thousand, fifty-eight".