77632212 has 48 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 22121952.

The previous prime is 77632211. The next prime is 77632213. The reversal of 77632212 is 21223677.

It is an interprime number because it is at equal distance from previous prime (77632211) and next prime (77632213).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 77632212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77632211) 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, 38239 + ... + 40217.

It is an arithmetic number, because the mean of its divisors is an integer number (4324320).

Almost surely, 2^77632212 is an apocalyptic number.

It is an amenable number.

77632212 is an abundant number, since it is smaller than the sum of its proper divisors (129935148).

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

77632212 is a wasteful number, since it uses less digits than its factorization.

77632212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2458 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 77632212 is about 8810.9143679870. The cubic root of 77632212 is about 426.5932574985.

Adding to 77632212 its reverse (21223677), we get a palindrome (98855889).

The spelling of 77632212 in words is "seventy-seven million, six hundred thirty-two thousand, two hundred twelve".