70624549 has 2 divisors, whose sum is σ = 70624550. Its totient is φ = 70624548.

The previous prime is 70624537. The next prime is 70624583. The reversal of 70624549 is 94542607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54863649 + 15760900 = 7407^2 + 3970^2 .

It is an emirp because it is prime and its reverse (94542607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70624549 - 2⁵ = 70624517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70624529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35312274 + 35312275.

It is an arithmetic number, because the mean of its divisors is an integer number (35312275).

Almost surely, 2^70624549 is an apocalyptic number.

It is an amenable number.

70624549 is a deficient number, since it is larger than the sum of its proper divisors (1).

70624549 is an equidigital number, since it uses as much as digits as its factorization.

70624549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 70624549 is about 8403.8413240613. The cubic root of 70624549 is about 413.3505906051.

It can be divided in two parts, 7062 and 4549, that added together give a palindrome (11611).

The spelling of 70624549 in words is "seventy million, six hundred twenty-four thousand, five hundred forty-nine".