691780482 has 48 divisors (see below), whose sum is σ = 1516525920. Its totient is φ = 227892096.

The previous prime is 691780459. The next prime is 691780493. The reversal of 691780482 is 284087196.

691780482 is a `hidden beast` number, since 6 + 91 + 7 + 80 + 482 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707578 + ... + 708554.

It is an arithmetic number, because the mean of its divisors is an integer number (31594290).

Almost surely, 2^691780482 is an apocalyptic number.

691780482 is an abundant number, since it is smaller than the sum of its proper divisors (824745438).

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

691780482 is a wasteful number, since it uses less digits than its factorization.

691780482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 691780482 is about 26301.7201338620. The cubic root of 691780482 is about 884.4150036086.

The spelling of 691780482 in words is "six hundred ninety-one million, seven hundred eighty thousand, four hundred eighty-two".