1201693806 has 56 divisors (see below), whose sum is σ = 2737046880. Its totient is φ = 395456256.

The previous prime is 1201693799. The next prime is 1201693853. The reversal of 1201693806 is 6083961021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 109966 + ... + 120398.

Almost surely, 2^1201693806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201693806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368523440).

1201693806 is an abundant number, since it is smaller than the sum of its proper divisors (1535353074).

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

1201693806 is an equidigital number, since it uses as much as digits as its factorization.

1201693806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10532 (or 10517 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1201693806 is about 34665.4555140993. The cubic root of 1201693806 is about 1063.1583167521.

The spelling of 1201693806 in words is "one billion, two hundred one million, six hundred ninety-three thousand, eight hundred six".