685283401 has 16 divisors (see below), whose sum is σ = 773707968. Its totient is φ = 601473600.

The previous prime is 685283399. The next prime is 685283419. The reversal of 685283401 is 104382586.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 685283401 - 2¹ = 685283399 is a prime.

It is a super-2 number, since 2×685283401² = 939226679372253602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (685283801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46891 + ... + 59743.

It is an arithmetic number, because the mean of its divisors is an integer number (48356748).

Almost surely, 2^685283401 is an apocalyptic number.

It is an amenable number.

685283401 is a deficient number, since it is larger than the sum of its proper divisors (88424567).

685283401 is a wasteful number, since it uses less digits than its factorization.

685283401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13032.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 685283401 is about 26177.9181945395. The cubic root of 685283401 is about 881.6375333197.

The spelling of 685283401 in words is "six hundred eighty-five million, two hundred eighty-three thousand, four hundred one".