97001603977 has 4 divisors (see below), whose sum is σ = 97002966016. Its totient is φ = 97000241940.

The previous prime is 97001603957. The next prime is 97001603983. The reversal of 97001603977 is 77930610079.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97001603977 is a prime.

It is a super-3 number, since 3×97001603977³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97001603977.

It is not an unprimeable number, because it can be changed into a prime (97001603957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567933 + ... + 718714.

It is an arithmetic number, because the mean of its divisors is an integer number (24250741504).

Almost surely, 2^97001603977 is an apocalyptic number.

It is an amenable number.

97001603977 is a deficient number, since it is larger than the sum of its proper divisors (1362039).

97001603977 is a wasteful number, since it uses less digits than its factorization.

97001603977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362038.

The product of its (nonzero) digits is 500094, while the sum is 49.

The spelling of 97001603977 in words is "ninety-seven billion, one million, six hundred three thousand, nine hundred seventy-seven".