1631227697 has 8 divisors (see below), whose sum is σ = 1782304992. Its totient is φ = 1480614400.

The previous prime is 1631227687. The next prime is 1631227711. The reversal of 1631227697 is 7967221361.

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 1631227697 - 2²⁶ = 1564118833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1631227607) 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, 108623 + ... + 122724.

It is an arithmetic number, because the mean of its divisors is an integer number (222788124).

Almost surely, 2^1631227697 is an apocalyptic number.

It is an amenable number.

1631227697 is a deficient number, since it is larger than the sum of its proper divisors (151077295).

1631227697 is a wasteful number, since it uses less digits than its factorization.

1631227697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231999.

The product of its digits is 190512, while the sum is 44.

The square root of 1631227697 is about 40388.4599483565. The cubic root of 1631227697 is about 1177.1673164872.

The spelling of 1631227697 in words is "one billion, six hundred thirty-one million, two hundred twenty-seven thousand, six hundred ninety-seven".