70709501 has 8 divisors (see below), whose sum is σ = 72526080. Its totient is φ = 68900832.

The previous prime is 70709491. The next prime is 70709519. The reversal of 70709501 is 10590707.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70709501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70709581) 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, 18881 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (9065760).

Almost surely, 2^70709501 is an apocalyptic number.

70709501 is the 6866-th pentagonal number.

It is an amenable number.

70709501 is a deficient number, since it is larger than the sum of its proper divisors (1816579).

70709501 is a wasteful number, since it uses less digits than its factorization.

70709501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955.

The product of its (nonzero) digits is 2205, while the sum is 29.

The square root of 70709501 is about 8408.8941603519. The cubic root of 70709501 is about 413.5162595767.

The spelling of 70709501 in words is "seventy million, seven hundred nine thousand, five hundred one".