70110621 has 18 divisors (see below), whose sum is σ = 117805662. Its totient is φ = 40062960.

The previous prime is 70110619. The next prime is 70110641. The reversal of 70110621 is 12601107.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 16088121 = 7350^2 + 4011^2 .

It is not a de Polignac number, because 70110621 - 2¹ = 70110619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70110594 and 70110603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70110611) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79050 + ... + 79931.

It is an arithmetic number, because the mean of its divisors is an integer number (6544759).

Almost surely, 2^70110621 is an apocalyptic number.

It is an amenable number.

70110621 is a deficient number, since it is larger than the sum of its proper divisors (47695041).

70110621 is a wasteful number, since it uses less digits than its factorization.

70110621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159001 (or 158991 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 70110621 is about 8373.2085248129. The cubic root of 70110621 is about 412.3455112944.

Adding to 70110621 its reverse (12601107), we get a palindrome (82711728).

The spelling of 70110621 in words is "seventy million, one hundred ten thousand, six hundred twenty-one".