1997932027 has 48 divisors (see below), whose sum is σ = 2564516640. Its totient is φ = 1551566016.

The previous prime is 1997932019. The next prime is 1997932033. The reversal of 1997932027 is 7202397991.

It is not a de Polignac number, because 1997932027 - 2³ = 1997932019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (1997932067) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7212613 + ... + 7212889.

It is an arithmetic number, because the mean of its divisors is an integer number (53427430).

Almost surely, 2^1997932027 is an apocalyptic number.

1997932027 is a deficient number, since it is larger than the sum of its proper divisors (566584613).

1997932027 is an equidigital number, since it uses as much as digits as its factorization.

1997932027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 1997932027 is about 44698.2329292781. The cubic root of 1997932027 is about 1259.4866530214.

The spelling of 1997932027 in words is "one billion, nine hundred ninety-seven million, nine hundred thirty-two thousand, twenty-seven".