120986836 has 12 divisors (see below), whose sum is σ = 216232128. Its totient is φ = 59206232.

The previous prime is 120986809. The next prime is 120986837. The reversal of 120986836 is 638689021.

It is a junction number, because it is equal to n+sod(n) for n = 120986792 and 120986801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120986837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321586 + ... + 321961.

It is an arithmetic number, because the mean of its divisors is an integer number (18019344).

Almost surely, 2^120986836 is an apocalyptic number.

It is an amenable number.

120986836 is a deficient number, since it is larger than the sum of its proper divisors (95245292).

120986836 is a wasteful number, since it uses less digits than its factorization.

120986836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643598 (or 643596 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 120986836 is about 10999.4016200882. The cubic root of 120986836 is about 494.5908069540.

The spelling of 120986836 in words is "one hundred twenty million, nine hundred eighty-six thousand, eight hundred thirty-six".