693630 has 64 divisors (see below), whose sum is σ = 2119680. Its totient is φ = 158112.

The previous prime is 693629. The next prime is 693659. The reversal of 693630 is 36396.

It is a super-2 number, since 2×693630² = 962245153800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 693594 and 693603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1707 + ... + 2073.

It is an arithmetic number, because the mean of its divisors is an integer number (33120).

2⁶⁹³⁶³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 693630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059840).

693630 is an abundant number, since it is smaller than the sum of its proper divisors (1426050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

693630 is a wasteful number, since it uses less digits than its factorization.

693630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 693630 is about 832.8445233055. The cubic root of 693630 is about 88.5202481679.

It can be divided in two parts, 6 and 93630, that added together give a square (93636 = 306²).

The spelling of 693630 in words is "six hundred ninety-three thousand, six hundred thirty".