70740049 has 4 divisors (see below), whose sum is σ = 71131060. Its totient is φ = 70349040.

The previous prime is 70740023. The next prime is 70740067. The reversal of 70740049 is 94004707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94004707 = 79 ⋅1189933.

It can be written as a sum of positive squares in 2 ways, for example, as 12110400 + 58629649 = 3480^2 + 7657^2 .

It is a cyclic number.

It is not a de Polignac number, because 70740049 - 2¹⁷ = 70608977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70740049.

It is not an unprimeable number, because it can be changed into a prime (70747049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195234 + ... + 195595.

It is an arithmetic number, because the mean of its divisors is an integer number (17782765).

Almost surely, 2^70740049 is an apocalyptic number.

It is an amenable number.

70740049 is a deficient number, since it is larger than the sum of its proper divisors (391011).

70740049 is a wasteful number, since it uses less digits than its factorization.

70740049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391010.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 70740049 is about 8410.7103742787. The cubic root of 70740049 is about 413.5758002601.

The spelling of 70740049 in words is "seventy million, seven hundred forty thousand, forty-nine".