70532739 has 6 divisors (see below), whose sum is σ = 101880636. Its totient is φ = 47021820.

The previous prime is 70532729. The next prime is 70532741. The reversal of 70532739 is 93723507.

It is a happy number.

It is not a de Polignac number, because 70532739 - 2¹³ = 70524547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70532729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3918477 + ... + 3918494.

It is an arithmetic number, because the mean of its divisors is an integer number (16980106).

Almost surely, 2^70532739 is an apocalyptic number.

70532739 is a deficient number, since it is larger than the sum of its proper divisors (31347897).

70532739 is a wasteful number, since it uses less digits than its factorization.

70532739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836977 (or 7836974 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 70532739 is about 8398.3771646670. The cubic root of 70532739 is about 413.1713980784.

The spelling of 70532739 in words is "seventy million, five hundred thirty-two thousand, seven hundred thirty-nine".