997101497 has 16 divisors (see below), whose sum is σ = 1195288320. Its totient is φ = 813238272.

The previous prime is 997101473. The next prime is 997101517. The reversal of 997101497 is 794101799.

It is not a de Polignac number, because 997101497 - 2¹⁴ = 997085113 is a prime.

It is a super-2 number, since 2×997101497² = 1988422790639282018, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 997101497 parts by 44656 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997104497) 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, 15029 + ... + 47117.

It is an arithmetic number, because the mean of its divisors is an integer number (74705520).

Almost surely, 2^997101497 is an apocalyptic number.

It is an amenable number.

997101497 is a deficient number, since it is larger than the sum of its proper divisors (198186823).

997101497 is a wasteful number, since it uses less digits than its factorization.

997101497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32312.

The product of its (nonzero) digits is 142884, while the sum is 47.

The square root of 997101497 is about 31576.9139879121. The cubic root of 997101497 is about 999.0328973473.

The spelling of 997101497 in words is "nine hundred ninety-seven million, one hundred one thousand, four hundred ninety-seven".