1968507 has 6 divisors (see below), whose sum is σ = 2843412. Its totient is φ = 1312332.

The previous prime is 1968487. The next prime is 1968521. The reversal of 1968507 is 7058691.

It is not a de Polignac number, because 1968507 - 2⁸ = 1968251 is a prime.

It is an Ulam number.

1968507 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1966507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109353 + ... + 109370.

It is an arithmetic number, because the mean of its divisors is an integer number (473902).

2^1968507 is an apocalyptic number.

1968507 is a deficient number, since it is larger than the sum of its proper divisors (874905).

1968507 is a wasteful number, since it uses less digits than its factorization.

1968507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218729 (or 218726 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1968507 is about 1403.0349247257. The cubic root of 1968507 is about 125.3272916269.

The spelling of 1968507 in words is "one million, nine hundred sixty-eight thousand, five hundred seven".