920407 has 2 divisors, whose sum is σ = 920408. Its totient is φ = 920406.

The previous prime is 920399. The next prime is 920411. The reversal of 920407 is 704029.

It is a strong prime.

It is an emirp because it is prime and its reverse (704029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920407 - 2³ = 920399 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460203 + 460204.

It is an arithmetic number, because the mean of its divisors is an integer number (460204).

2⁹²⁰⁴⁰⁷ is an apocalyptic number.

920407 is a deficient number, since it is larger than the sum of its proper divisors (1).

920407 is an equidigital number, since it uses as much as digits as its factorization.

920407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 920407 is about 959.3784446192. The cubic root of 920407 is about 97.2732226688.

The spelling of 920407 in words is "nine hundred twenty thousand, four hundred seven".