70702061 has 2 divisors, whose sum is σ = 70702062. Its totient is φ = 70702060.

The previous prime is 70702007. The next prime is 70702063. The reversal of 70702061 is 16020707.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40386025 + 30316036 = 6355^2 + 5506^2 .

It is a cyclic number.

It is not a de Polignac number, because 70702061 - 2¹⁸ = 70439917 is a prime.

Together with 70702063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70702063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35351030 + 35351031.

It is an arithmetic number, because the mean of its divisors is an integer number (35351031).

Almost surely, 2^70702061 is an apocalyptic number.

It is an amenable number.

70702061 is a deficient number, since it is larger than the sum of its proper divisors (1).

70702061 is an equidigital number, since it uses as much as digits as its factorization.

70702061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 70702061 is about 8408.4517599853. The cubic root of 70702061 is about 413.5017557791.

Adding to 70702061 its reverse (16020707), we get a palindrome (86722768).

The spelling of 70702061 in words is "seventy million, seven hundred two thousand, sixty-one".