70213477 has 2 divisors, whose sum is σ = 70213478. Its totient is φ = 70213476.

The previous prime is 70213471. The next prime is 70213489. The reversal of 70213477 is 77431207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42850116 + 27363361 = 6546^2 + 5231^2 .

It is a cyclic number.

It is not a de Polignac number, because 70213477 - 2³ = 70213469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70213471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35106738 + 35106739.

It is an arithmetic number, because the mean of its divisors is an integer number (35106739).

Almost surely, 2^70213477 is an apocalyptic number.

It is an amenable number.

70213477 is a deficient number, since it is larger than the sum of its proper divisors (1).

70213477 is an equidigital number, since it uses as much as digits as its factorization.

70213477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 70213477 is about 8379.3482443445. The cubic root of 70213477 is about 412.5470570130.

The spelling of 70213477 in words is "seventy million, two hundred thirteen thousand, four hundred seventy-seven".