672654091 has 8 divisors (see below), whose sum is σ = 675684864. Its totient is φ = 669630720.

The previous prime is 672654053. The next prime is 672654107. The reversal of 672654091 is 190456276.

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 672654091 - 2¹⁹ = 672129803 is a prime.

It is a super-2 number, since 2×672654091² = 904927052278072562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672655091) 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, 251835 + ... + 254491.

It is an arithmetic number, because the mean of its divisors is an integer number (84460608).

Almost surely, 2^672654091 is an apocalyptic number.

672654091 is a deficient number, since it is larger than the sum of its proper divisors (3030773).

672654091 is a wasteful number, since it uses less digits than its factorization.

672654091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 672654091 is about 25935.5757792265. The cubic root of 672654091 is about 876.1879227331.

The spelling of 672654091 in words is "six hundred seventy-two million, six hundred fifty-four thousand, ninety-one".