70439741 has 2 divisors, whose sum is σ = 70439742. Its totient is φ = 70439740.

The previous prime is 70439737. The next prime is 70439767. The reversal of 70439741 is 14793407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52504516 + 17935225 = 7246^2 + 4235^2 .

It is an emirp because it is prime and its reverse (14793407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70439741 - 2² = 70439737 is a prime.

It is a super-2 number, since 2×70439741² = 9923514224294162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70439771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35219870 + 35219871.

It is an arithmetic number, because the mean of its divisors is an integer number (35219871).

Almost surely, 2^70439741 is an apocalyptic number.

It is an amenable number.

70439741 is a deficient number, since it is larger than the sum of its proper divisors (1).

70439741 is an equidigital number, since it uses as much as digits as its factorization.

70439741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 70439741 is about 8392.8386735359. The cubic root of 70439741 is about 412.9897282415.

The spelling of 70439741 in words is "seventy million, four hundred thirty-nine thousand, seven hundred forty-one".