70538837 has 2 divisors, whose sum is σ = 70538838. Its totient is φ = 70538836.

The previous prime is 70538821. The next prime is 70538851. The reversal of 70538837 is 73883507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61058596 + 9480241 = 7814^2 + 3079^2 .

It is a cyclic number.

It is not a de Polignac number, because 70538837 - 2⁴ = 70538821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70538794 and 70538803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70538437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35269418 + 35269419.

It is an arithmetic number, because the mean of its divisors is an integer number (35269419).

Almost surely, 2^70538837 is an apocalyptic number.

It is an amenable number.

70538837 is a deficient number, since it is larger than the sum of its proper divisors (1).

70538837 is an equidigital number, since it uses as much as digits as its factorization.

70538837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 70538837 is about 8398.7402031495. The cubic root of 70538837 is about 413.1833048261.

The spelling of 70538837 in words is "seventy million, five hundred thirty-eight thousand, eight hundred thirty-seven".