97671405 has 32 divisors (see below), whose sum is σ = 171892224. Its totient is φ = 47056896.

The previous prime is 97671367. The next prime is 97671407. The reversal of 97671405 is 50417679.

It is not a de Polignac number, because 97671405 - 2⁹ = 97670893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97671407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3837 + ... + 14493.

It is an arithmetic number, because the mean of its divisors is an integer number (5371632).

Almost surely, 2^97671405 is an apocalyptic number.

It is an amenable number.

97671405 is a deficient number, since it is larger than the sum of its proper divisors (74220819).

97671405 is a wasteful number, since it uses less digits than its factorization.

97671405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10725.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 97671405 is about 9882.8844473666. The cubic root of 97671405 is about 460.5277575368.

The spelling of 97671405 in words is "ninety-seven million, six hundred seventy-one thousand, four hundred five".