213603776 has 56 divisors (see below), whose sum is σ = 472470480. Its totient is φ = 95219712.

The previous prime is 213603773. The next prime is 213603781. The reversal of 213603776 is 677306312.

It is a happy number.

213603776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213603773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15506 + ... + 25838.

Almost surely, 2^213603776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213603776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236235240).

213603776 is an abundant number, since it is smaller than the sum of its proper divisors (258866704).

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

213603776 is a wasteful number, since it uses less digits than its factorization.

213603776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10381 (or 10371 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 213603776 is about 14615.1899063953. The cubic root of 213603776 is about 597.7730185566.

The spelling of 213603776 in words is "two hundred thirteen million, six hundred three thousand, seven hundred seventy-six".