70026321 has 4 divisors (see below), whose sum is σ = 93368432. Its totient is φ = 46684212.

The previous prime is 70026277. The next prime is 70026331. The reversal of 70026321 is 12362007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70026321 - 2¹⁹ = 69502033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70026331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11671051 + ... + 11671056.

It is an arithmetic number, because the mean of its divisors is an integer number (23342108).

Almost surely, 2^70026321 is an apocalyptic number.

It is an amenable number.

70026321 is a deficient number, since it is larger than the sum of its proper divisors (23342111).

70026321 is a wasteful number, since it uses less digits than its factorization.

70026321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342110.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 70026321 is about 8368.1730981141. The cubic root of 70026321 is about 412.1801789128.

Adding to 70026321 its reverse (12362007), we get a palindrome (82388328).

The spelling of 70026321 in words is "seventy million, twenty-six thousand, three hundred twenty-one".