1958427 has 12 divisors (see below), whose sum is σ = 2952144. Its totient is φ = 1248720.

The previous prime is 1958423. The next prime is 1958431. The reversal of 1958427 is 7248591.

It is an interprime number because it is at equal distance from previous prime (1958423) and next prime (1958431).

It is not a de Polignac number, because 1958427 - 2² = 1958423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1958391 and 1958400.

It is not an unprimeable number, because it can be changed into a prime (1958423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4524 + ... + 4937.

It is an arithmetic number, because the mean of its divisors is an integer number (246012).

2^1958427 is an apocalyptic number.

1958427 is a deficient number, since it is larger than the sum of its proper divisors (993717).

1958427 is a wasteful number, since it uses less digits than its factorization.

1958427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490 (or 9487 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1958427 is about 1399.4381015250. The cubic root of 1958427 is about 125.1130071376.

The spelling of 1958427 in words is "one million, nine hundred fifty-eight thousand, four hundred twenty-seven".