1958601 has 8 divisors (see below), whose sum is σ = 2626624. Its totient is φ = 1298160.

The previous prime is 1958591. The next prime is 1958603. The reversal of 1958601 is 1068591.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1958601 - 2⁵ = 1958569 is a prime.

It is a super-2 number, since 2×1958601² = 7672235754402, which contains 22 as substring.

It is the 1400-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1958603) by changing a digit.

It is a nontrivial repunit in base 1399.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (328328).

2^1958601 is an apocalyptic number.

It is an amenable number.

1958601 is a deficient number, since it is larger than the sum of its proper divisors (668023).

1958601 is a wasteful number, since it uses less digits than its factorization.

1958601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1958601 is about 1399.5002679528. The cubic root of 1958601 is about 125.1167123253.

The spelling of 1958601 in words is "one million, nine hundred fifty-eight thousand, six hundred one".