72609465 has 16 divisors (see below), whose sum is σ = 123009408. Its totient is φ = 36446976.

The previous prime is 72609463. The next prime is 72609487. The reversal of 72609465 is 56490627.

It is not a de Polignac number, because 72609465 - 2¹ = 72609463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72609463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142117 + ... + 142626.

It is an arithmetic number, because the mean of its divisors is an integer number (7688088).

Almost surely, 2^72609465 is an apocalyptic number.

It is an amenable number.

72609465 is a deficient number, since it is larger than the sum of its proper divisors (50399943).

72609465 is a wasteful number, since it uses less digits than its factorization.

72609465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284768.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 72609465 is about 8521.1187645755. The cubic root of 72609465 is about 417.1872997656.

The spelling of 72609465 in words is "seventy-two million, six hundred nine thousand, four hundred sixty-five".