683401531 has 4 divisors (see below), whose sum is σ = 686237464. Its totient is φ = 680565600.

The previous prime is 683401517. The next prime is 683401549. The reversal of 683401531 is 135104386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 683401531 - 2¹⁷ = 683270459 is a prime.

It is a super-2 number, since 2×683401531² = 934075305146287922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 683401493 and 683401502.

It is not an unprimeable number, because it can be changed into a prime (683401031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1417605 + ... + 1418086.

It is an arithmetic number, because the mean of its divisors is an integer number (171559366).

Almost surely, 2^683401531 is an apocalyptic number.

683401531 is a deficient number, since it is larger than the sum of its proper divisors (2835933).

683401531 is a wasteful number, since it uses less digits than its factorization.

683401531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835932.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 683401531 is about 26141.9496403769. The cubic root of 683401531 is about 880.8297661662.

The spelling of 683401531 in words is "six hundred eighty-three million, four hundred one thousand, five hundred thirty-one".