70272621 has 36 divisors (see below), whose sum is σ = 109837728. Its totient is φ = 43264368.

The previous prime is 70272619. The next prime is 70272637. The reversal of 70272621 is 12627207.

It is not a de Polignac number, because 70272621 - 2¹ = 70272619 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70272221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 139456 + ... + 139958.

It is an arithmetic number, because the mean of its divisors is an integer number (3051048).

Almost surely, 2^70272621 is an apocalyptic number.

It is an amenable number.

70272621 is a deficient number, since it is larger than the sum of its proper divisors (39565107).

70272621 is a wasteful number, since it uses less digits than its factorization.

70272621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70272621 is about 8382.8766542280. The cubic root of 70272621 is about 412.6628602102.

Adding to 70272621 its reverse (12627207), we get a palindrome (82899828).

It can be divided in two parts, 70 and 272621, that added together give a triangular number (272691 = T₇₃₈).

The spelling of 70272621 in words is "seventy million, two hundred seventy-two thousand, six hundred twenty-one".