70697649 has 8 divisors (see below), whose sum is σ = 102832992. Its totient is φ = 42847040.

The previous prime is 70697647. The next prime is 70697717. The reversal of 70697649 is 94679607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70697649 - 2¹ = 70697647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70697598 and 70697607.

It is not an unprimeable number, because it can be changed into a prime (70697647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071144 + ... + 1071209.

It is an arithmetic number, because the mean of its divisors is an integer number (12854124).

Almost surely, 2^70697649 is an apocalyptic number.

It is an amenable number.

70697649 is a deficient number, since it is larger than the sum of its proper divisors (32135343).

70697649 is a wasteful number, since it uses less digits than its factorization.

70697649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142367.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 70697649 is about 8408.1894008163. The cubic root of 70697649 is about 413.4931543905.

The spelling of 70697649 in words is "seventy million, six hundred ninety-seven thousand, six hundred forty-nine".