7097640 has 128 divisors (see below), whose sum is σ = 24537600. Its totient is φ = 1624320.

The previous prime is 7097603. The next prime is 7097647. The reversal of 7097640 is 467907.

7097640 = T₅₃₉ + T₅₄₀ + ... + T₅₈₃.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7097647) 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, 24939 + ... + 25221.

It is an arithmetic number, because the mean of its divisors is an integer number (191700).

Almost surely, 2^7097640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7097640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12268800).

7097640 is an abundant number, since it is smaller than the sum of its proper divisors (17439960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7097640 is a wasteful number, since it uses less digits than its factorization.

7097640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 7097640 is about 2664.1396359801. The cubic root of 7097640 is about 192.1784365479.

The spelling of 7097640 in words is "seven million, ninety-seven thousand, six hundred forty".