70662747 has 4 divisors (see below), whose sum is σ = 94217000. Its totient is φ = 47108496.

The previous prime is 70662743. The next prime is 70662749. The reversal of 70662747 is 74726607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74726607 = 3 ⋅24908869.

It is not a de Polignac number, because 70662747 - 2² = 70662743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70662743) 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, 11777122 + ... + 11777127.

It is an arithmetic number, because the mean of its divisors is an integer number (23554250).

Almost surely, 2^70662747 is an apocalyptic number.

70662747 is a deficient number, since it is larger than the sum of its proper divisors (23554253).

70662747 is a wasteful number, since it uses less digits than its factorization.

70662747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23554252.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 70662747 is about 8406.1136680395. The cubic root of 70662747 is about 413.4250987865.

The spelling of 70662747 in words is "seventy million, six hundred sixty-two thousand, seven hundred forty-seven".