70974637 has 2 divisors, whose sum is σ = 70974638. Its totient is φ = 70974636.

The previous prime is 70974623. The next prime is 70974667. The reversal of 70974637 is 73647907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44903401 + 26071236 = 6701^2 + 5106^2 .

It is a cyclic number.

It is not a de Polignac number, because 70974637 - 2¹⁹ = 70450349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70974593 and 70974602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70974667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35487318 + 35487319.

It is an arithmetic number, because the mean of its divisors is an integer number (35487319).

Almost surely, 2^70974637 is an apocalyptic number.

It is an amenable number.

70974637 is a deficient number, since it is larger than the sum of its proper divisors (1).

70974637 is an equidigital number, since it uses as much as digits as its factorization.

70974637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 70974637 is about 8424.6446215849. The cubic root of 70974637 is about 414.0324622340.

The spelling of 70974637 in words is "seventy million, nine hundred seventy-four thousand, six hundred thirty-seven".