1423957 has 2 divisors, whose sum is σ = 1423958. Its totient is φ = 1423956.

The previous prime is 1423949. The next prime is 1423967. The reversal of 1423957 is 7593241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1418481 + 5476 = 1191^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423957 - 2³ = 1423949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711978 + 711979.

It is an arithmetic number, because the mean of its divisors is an integer number (711979).

2^1423957 is an apocalyptic number.

It is an amenable number.

1423957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423957 is an equidigital number, since it uses as much as digits as its factorization.

1423957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 1423957 is about 1193.2966940372. The cubic root of 1423957 is about 112.5033941363.

The spelling of 1423957 in words is "one million, four hundred twenty-three thousand, nine hundred fifty-seven".