70718629 has 4 divisors (see below), whose sum is σ = 73793376. Its totient is φ = 67643884.

The previous prime is 70718621. The next prime is 70718633. The reversal of 70718629 is 92681707.

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.

It is a cyclic number.

It is not a de Polignac number, because 70718629 - 2³ = 70718621 is a prime.

It is a super-2 number, since 2×70718629² = 10002248975279282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70718591 and 70718600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70718621) 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, 1537339 + ... + 1537384.

It is an arithmetic number, because the mean of its divisors is an integer number (18448344).

Almost surely, 2^70718629 is an apocalyptic number.

It is an amenable number.

70718629 is a deficient number, since it is larger than the sum of its proper divisors (3074747).

70718629 is a wasteful number, since it uses less digits than its factorization.

70718629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074746.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 70718629 is about 8409.4369014816. The cubic root of 70718629 is about 413.5340526312.

The spelling of 70718629 in words is "seventy million, seven hundred eighteen thousand, six hundred twenty-nine".