70109437 has 2 divisors, whose sum is σ = 70109438. Its totient is φ = 70109436.

The previous prime is 70109401. The next prime is 70109471. The reversal of 70109437 is 73490107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42954916 + 27154521 = 6554^2 + 5211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70109437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70109399 and 70109408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70107437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35054718 + 35054719.

It is an arithmetic number, because the mean of its divisors is an integer number (35054719).

Almost surely, 2^70109437 is an apocalyptic number.

It is an amenable number.

70109437 is a deficient number, since it is larger than the sum of its proper divisors (1).

70109437 is an equidigital number, since it uses as much as digits as its factorization.

70109437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 70109437 is about 8373.1378228237. The cubic root of 70109437 is about 412.3431901062.

The spelling of 70109437 in words is "seventy million, one hundred nine thousand, four hundred thirty-seven".