97870653 has 32 divisors (see below), whose sum is σ = 154137600. Its totient is φ = 61201008.

The previous prime is 97870639. The next prime is 97870667. The reversal of 97870653 is 35607879.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97870639) and next prime (97870667).

It is not a de Polignac number, because 97870653 - 2¹² = 97866557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97870599 and 97870608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97870603) 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, 54000 + ... + 55782.

It is an arithmetic number, because the mean of its divisors is an integer number (4816800).

Almost surely, 2^97870653 is an apocalyptic number.

It is an amenable number.

97870653 is a deficient number, since it is larger than the sum of its proper divisors (56266947).

97870653 is a wasteful number, since it uses less digits than its factorization.

97870653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 97870653 is about 9892.9597694522. The cubic root of 97870653 is about 460.8407010897.

It can be divided in two parts, 978 and 70653, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 97870653 in words is "ninety-seven million, eight hundred seventy thousand, six hundred fifty-three".