97071644 has 6 divisors (see below), whose sum is σ = 169875384. Its totient is φ = 48535820.

The previous prime is 97071643. The next prime is 97071659. The reversal of 97071644 is 44617079.

It is a junction number, because it is equal to n+sod(n) for n = 97071598 and 97071607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97071643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12133952 + ... + 12133959.

It is an arithmetic number, because the mean of its divisors is an integer number (28312564).

Almost surely, 2^97071644 is an apocalyptic number.

It is an amenable number.

97071644 is a deficient number, since it is larger than the sum of its proper divisors (72803740).

97071644 is a wasteful number, since it uses less digits than its factorization.

97071644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24267915 (or 24267913 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 97071644 is about 9852.4943034746. The cubic root of 97071644 is about 459.5831826019.

The spelling of 97071644 in words is "ninety-seven million, seventy-one thousand, six hundred forty-four".