1955407 has 2 divisors, whose sum is σ = 1955408. Its totient is φ = 1955406.

The previous prime is 1955399. The next prime is 1955417. The reversal of 1955407 is 7045591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1955407 - 2³ = 1955399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977703 + 977704.

It is an arithmetic number, because the mean of its divisors is an integer number (977704).

2^1955407 is an apocalyptic number.

1955407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955407 is an equidigital number, since it uses as much as digits as its factorization.

1955407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1955407 is about 1398.3586807397. The cubic root of 1955407 is about 125.0486637189.

The spelling of 1955407 in words is "one million, nine hundred fifty-five thousand, four hundred seven".