70340761 has 4 divisors (see below), whose sum is σ = 70570192. Its totient is φ = 70111332.

The previous prime is 70340759. The next prime is 70340771. The reversal of 70340761 is 16704307.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16704307 = 3359 ⋅4973.

It is a cyclic number.

It is not a de Polignac number, because 70340761 - 2¹ = 70340759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70340771) 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, 114255 + ... + 114868.

It is an arithmetic number, because the mean of its divisors is an integer number (17642548).

Almost surely, 2^70340761 is an apocalyptic number.

It is an amenable number.

70340761 is a deficient number, since it is larger than the sum of its proper divisors (229431).

70340761 is a wasteful number, since it uses less digits than its factorization.

70340761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229430.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 70340761 is about 8386.9399067836. The cubic root of 70340761 is about 412.7961969364.

The spelling of 70340761 in words is "seventy million, three hundred forty thousand, seven hundred sixty-one".