70620653 has 2 divisors, whose sum is σ = 70620654. Its totient is φ = 70620652.

The previous prime is 70620637. The next prime is 70620661. The reversal of 70620653 is 35602607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70526404 + 94249 = 8398^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 70620653 - 2⁴ = 70620637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70640653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35310326 + 35310327.

It is an arithmetic number, because the mean of its divisors is an integer number (35310327).

Almost surely, 2^70620653 is an apocalyptic number.

It is an amenable number.

70620653 is a deficient number, since it is larger than the sum of its proper divisors (1).

70620653 is an equidigital number, since it uses as much as digits as its factorization.

70620653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 70620653 is about 8403.6095221042. The cubic root of 70620653 is about 413.3429896432.

The spelling of 70620653 in words is "seventy million, six hundred twenty thousand, six hundred fifty-three".