70727465 has 4 divisors (see below), whose sum is σ = 84872964. Its totient is φ = 56581968.

The previous prime is 70727351. The next prime is 70727467. The reversal of 70727465 is 56472707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56472707 = 2749 ⋅20543.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 36808489 = 5824^2 + 6067^2 .

It is a cyclic number.

It is not a de Polignac number, because 70727465 - 2¹⁰ = 70726441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70727467) 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, 7072742 + ... + 7072751.

It is an arithmetic number, because the mean of its divisors is an integer number (21218241).

Almost surely, 2^70727465 is an apocalyptic number.

It is an amenable number.

70727465 is a deficient number, since it is larger than the sum of its proper divisors (14145499).

70727465 is a wasteful number, since it uses less digits than its factorization.

70727465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14145498.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 70727465 is about 8409.9622472399. The cubic root of 70727465 is about 413.5512750367.

The spelling of 70727465 in words is "seventy million, seven hundred twenty-seven thousand, four hundred sixty-five".