70920629 has 8 divisors (see below), whose sum is σ = 77235480. Its totient is φ = 64728576.

The previous prime is 70920599. The next prime is 70920643. The reversal of 70920629 is 92602907.

It can be written as a sum of positive squares in 4 ways, for example, as 528529 + 70392100 = 727^2 + 8390^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70920629 - 2¹² = 70916533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70920659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29492 + ... + 31805.

It is an arithmetic number, because the mean of its divisors is an integer number (9654435).

Almost surely, 2^70920629 is an apocalyptic number.

It is an amenable number.

70920629 is a deficient number, since it is larger than the sum of its proper divisors (6314851).

70920629 is a wasteful number, since it uses less digits than its factorization.

70920629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61399.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 70920629 is about 8421.4386538168. The cubic root of 70920629 is about 413.9274165424.

The spelling of 70920629 in words is "seventy million, nine hundred twenty thousand, six hundred twenty-nine".