1630966247 has 8 divisors (see below), whose sum is σ = 1727737200. Its totient is φ = 1534287744.

The previous prime is 1630966243. The next prime is 1630966261. The reversal of 1630966247 is 7426690361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1630966247 - 2² = 1630966243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630966198 and 1630966207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630966241) 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, 15029 + ... + 59057.

It is an arithmetic number, because the mean of its divisors is an integer number (215967150).

Almost surely, 2^1630966247 is an apocalyptic number.

1630966247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1630966247 is a deficient number, since it is larger than the sum of its proper divisors (96770953).

1630966247 is a wasteful number, since it uses less digits than its factorization.

1630966247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46225.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 1630966247 is about 40385.2231267824. The cubic root of 1630966247 is about 1177.1044217648.

The spelling of 1630966247 in words is "one billion, six hundred thirty million, nine hundred sixty-six thousand, two hundred forty-seven".