80821962 has 40 divisors (see below), whose sum is σ = 195036996. Its totient is φ = 24867648.

The previous prime is 80821957. The next prime is 80821969. The reversal of 80821962 is 26912808.

It can be written as a sum of positive squares in 2 ways, for example, as 57289761 + 23532201 = 7569^2 + 4851^2 .

It is not an unprimeable number, because it can be changed into a prime (80821969) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17083 + ... + 21294.

Almost surely, 2^80821962 is an apocalyptic number.

80821962 is an abundant number, since it is smaller than the sum of its proper divisors (114215034).

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

80821962 is a wasteful number, since it uses less digits than its factorization.

80821962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38404 (or 38395 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 80821962 is about 8990.1035589141. The cubic root of 80821962 is about 432.3576320926.

The spelling of 80821962 in words is "eighty million, eight hundred twenty-one thousand, nine hundred sixty-two".