1993480247 has 16 divisors (see below), whose sum is σ = 2296694400. Its totient is φ = 1711225440.

The previous prime is 1993480241. The next prime is 1993480261. The reversal of 1993480247 is 7420843991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1993480247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993480241) 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, 48629 + ... + 79697.

It is an arithmetic number, because the mean of its divisors is an integer number (143543400).

Almost surely, 2^1993480247 is an apocalyptic number.

1993480247 is a deficient number, since it is larger than the sum of its proper divisors (303214153).

1993480247 is a wasteful number, since it uses less digits than its factorization.

1993480247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31406.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 1993480247 is about 44648.4069928592. The cubic root of 1993480247 is about 1258.5504971959.

The spelling of 1993480247 in words is "one billion, nine hundred ninety-three million, four hundred eighty thousand, two hundred forty-seven".