97561463 has 4 divisors (see below), whose sum is σ = 98072448. Its totient is φ = 97050480.

The previous prime is 97561439. The next prime is 97561493. The reversal of 97561463 is 36416579.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97561463 - 2¹⁴ = 97545079 is a prime.

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 97561463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97561493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255206 + ... + 255587.

It is an arithmetic number, because the mean of its divisors is an integer number (24518112).

Almost surely, 2^97561463 is an apocalyptic number.

97561463 is a deficient number, since it is larger than the sum of its proper divisors (510985).

97561463 is a wasteful number, since it uses less digits than its factorization.

97561463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510984.

The product of its digits is 136080, while the sum is 41.

The square root of 97561463 is about 9877.3206387157. The cubic root of 97561463 is about 460.3548978275.

The spelling of 97561463 in words is "ninety-seven million, five hundred sixty-one thousand, four hundred sixty-three".