1798407 has 24 divisors (see below), whose sum is σ = 2948400. Its totient is φ = 1047168.

The previous prime is 1798387. The next prime is 1798409. The reversal of 1798407 is 7048971.

It is not a de Polignac number, because 1798407 - 2⁸ = 1798151 is a prime.

1798407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798409) 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 in 23 ways as a sum of consecutive naturals, for example, 1819 + ... + 2627.

It is an arithmetic number, because the mean of its divisors is an integer number (122850).

2^1798407 is an apocalyptic number.

1798407 is a deficient number, since it is larger than the sum of its proper divisors (1149993).

1798407 is a wasteful number, since it uses less digits than its factorization.

1798407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1798407 is about 1341.0469790429. The cubic root of 1798407 is about 121.6081443284.

The spelling of 1798407 in words is "one million, seven hundred ninety-eight thousand, four hundred seven".